This is what I see.

first of all build a car for the fun and the love of doing it and not to win every show you go too.

Build a car that is fun to drive and not one that will set a land speed record and have to ride on a trailer

build on a budget so when you get to the end of the build you don't cut corners

Ask question before you pay stupid tax, what you see us pros do can be done by anyone at home. Before I opened my shop I built my own cars at home and did just as good.I didn't have as much room but didn't build but one at a time.

build a car that flows together well and doesn't have a lot of stuff that stands out.

KISS
keep it simple stupid