LDR boyfriend visiting for the 1st time, how to introduce family dog to him?

[-gemma-1990-]

so my LDR boyfriend is coming down to visit sometime in the next month, we have been together 6 months this monday coming, but have known each other for a year now, we met through a friend(i ended up cheating with him on my then boyfriend that's how we have ended up being bf/gf now) he has a male 7 year old spaniel(i think) which we took out on walks while i was holidaying up there for that week last october. the dog never really payed much attention to me because i was a stranger and he was out of his territory, then when we started to go out with each each other i went to stay with him for a week and a half in the 2nd part of june this year, and my boyfriend basically said when we got to his "the dog will bark at you and stuff, but just put your hand out to let him sniff it and lick it and stuff then he will like you" and sure enough i put my hand out, the dog sniffed it, then licked it a little bit then has been perfectly fine with me ever since, apart from going for me to the point where he just had his mouth open and was a few cm away from my hand, but that is understandable as me and my bf were messing around and i went to hit him, so its the dog just protecting his owner.
now the main part, me and my family have a 2 year old english bulldog b*tch, she really is not very good with strangers, she just barks and barks even if we scold her and tries to get to them, but we don't know if she will bite or not because we never let her get as far as getting to them, she will even go for the mail when it comes through the letmassageplanetox, but we scold her for it and try and pick it up as quickly as we can lol, but when my bf comes down to visit, because we don't let the dog upstairs, we cant just keep my bf upstairs all the time lol he needs to go downstairs if he wants food or drink and to enter and exit the house. i have spoken with my mum about it and she said the best thing is for me and her to walk with the dog to the bus stop/train station to meet my bf with the dog so that they can meet each other in a neutral environment, as it will be a place both my bf nor the dog have been before so technically our dog should NOT go for my bf, right?? i have also come up with the idea that obviously my bf has treats in his house for his dog, so if he brings a couple of them, while he is getting to know our dog he can give them to her to show that he is a good person and has good things(treats) for her.
what do you think about this? obviously also walking to a place where there are other people will kind of show us if our dog goes for any of them, because for all she and we know any of those people could walk up to her to stroke her etc. or be my bf coming off the bus/train etc.
our dog has never attacked another dog or been attacked, the worst thing i know is that my friend(the one that introduced me and my bf) was visiting and she went to stroke our dog and came on too strong and our dog basically was growling and then jumped up and started barking viciously at her, but then my friend was stood upright and bent over(she is quite tall) so i think she looked like a threat to our dog, but then the best thing i know is that my mum bought the dog while her and my dad were split up and she was seeing someone else, that man have very strong discipline on the dog and it paid off whenever visitors went to his house or whenever she was taken for walks etc., so soon after my mum moved back in with us, obviously all of this was still in the dogs mind and my friend came over with her then boyfriend who our dog had never met before, and they were perfectly fine together, he sat on the doorstep with his arms round her and my friend took a picture, but i really don't think this would happen now.
the only people our dog knows best is me, my brother, my mum, my dad, my mums friend who visits for an hour or so nearly everyday and my ex(well, she did, but i don't speak to him anymore and haven't done for the last 6 months so she probably wont remember him).
sorry its long but i really just want my boyfriend to be able to have a peaceful, enjoyable stay and leave with a massive smile slapped on his face, not leave with tears and an angry face headed for the hospital just because my dog mauled him or something silly like that.