So much to do, don't know whats next, need advice

Well, IMO...if you don’t build the car the way to want it to be and take the time to get the body and trim right first before jumping to running and driving it...you may never go back and finish the vision you first had.

If you have taken the time to do the body and paint and are now working through the process of building what you want, stay disciplined and finish the body first. That means interior and exterior trim before moving into the mechanical side.

It’s too easy to get impatient and start rushing the process. If you wanted just a diver, you wouldn’t have taken the time and care to do the body first.

It’s all about what you really want out of the car.

If you do the exterior trim and interior before the mechanical work, you just increase the chances you’ll screw it up. You’re working around the car with wrenches and big heavy parts when you’re doing the mechanical work, if you accidentally ding or scratch something you don’t want the final clean and buff already done and all the exterior trim installed, you’ll just have to pull it off and do it over again.

And the interior WILL be in the way when you install the mechanical stuff. Do you want the grille in place when you’re swinging the engine in? Do you want the heater motor sticking out? Well if the heater box isn’t installed you don’t want the seats in yet, they’re in the way. Or the gauge cluster, which means the steering column is dropped. There is an order of operation, and if you start jumping around it just means repeating work.

God forbid the engine shifts over when you’re installing it and scratches a big chunk out of the paint. Then you have to send the car back to the paint shop fully assembled with an interior in it already. Good luck with that!

There’s no reason to have an interior in a car that can’t be driven. If it can’t move under its own power there’s no need for an interior, you can’t use it anyway. And if you install everything before it runs and then you have a mechanical issue and you have to pull the engine back out, you’ve got to pull all that other crap first.