The best carb will depend on what you are going to use the car for, if your going to track the car holly is not the best due to fuel starvation on hard corners, the center hung floats help a bit.
I have used the stock nikki, a holley for n/a, the holley for blowthrough turbo, and now converted to fi.
Fi is best for turbo, if you went blowthrough on a13b a holley or webber would work
N/a 13b carb and good exaust will make the car a lot funner than stock.
You will want the flywheel for the engine your getting, all 83.5-91 na engines take the same clutch