In the process of getting my own torch setup at home - mainly for more practice and messing around with my second frame.

I'm going with an oxy/acetylene setup since I have more experience with it vs mapp, etc and its what I've learned elsewhere on.

My question is what is a good tank size combo for hobby building? I need to be able to move this fairly easily into my basement. I think the quote I have from Airgas is a B for acetylene and a 40 or 80 for oxy. Just looking for some recommendations on tank pairings that make sense based on what we do and knowing I'm just practicing and maybe brazing a frame a year.