318 or 360 Roller Swap

Found 2 engines to potentially swap into my 73 Swinger. Old guy wants $300 bucks for either one. Both engines are in vans. First engine is an '89 TBI 318 while the other is a 1992 TBI 360. Both are similar mileage and both run strong and quiet. Currently my car has a bad LA 318 with a lock-up 904 and a 7 1/4 rear. I have a 8 3/4 to swap in which has 2.76 gears.

I'm hoping to have a fun street car, cruiser while still being able to keep up with the 80's stock 5.0 stangs that a few friends of mine have. Besides having to run an eccentric on the cam to run my fuel pump and potentially a weighted flexplate if I go with the 360, is there anything else that I'm missing?

I have an Eddy 318/360 Performer intake and 600 Eddy carb to swap on the engine that I choose. I also have a new Retro 340 Purple cam and lifters sitting on my shelf. Even though both engines are rollers, is installing this cam an option? Or is an expensive roller cam the way to go? Or should I go a different route?