the only way around the tab issue is to put the engine in first then put the transmission in from the bottom. (major pita) If you're carefull, you can push those tabs flush where you can't even tell they were there in the first place.
as for the booster, you can't use the stock brake booster. you have to use a post 1991 toyota truck booster that's 8" in diameter. Or, you just go without one. (not reccomended)