When I was HEAVILY around the painting scene about 5 years ago typical jobs would be around $250-$350 per panel as a estimate in overall materials. Typically you could get enough primer, paint, clear, bodyfiller, reducer, misc. disposables (ie, scuff pads, mixing supplies, cups, filters, etc…) to do a WHOLE car respray for around $1,500. That was using paint from Al-Wils. I think he had PPG. However, the cost savings is if the guy/gal spraying it can reuse supplies on other jobs like the misc garbage that is a dime a dozen. The paint and clear is going to hurt you no matter what. That is even before labor.
You said you are willing to do the prep work. Most of the time it is a burden. While it is great that you offer most people will redo it. I typically did. I was a prep guy for many jobs. I hated deep scuff marks, scratches, and missed spots that get overlooked by the people trying to save monet. It drove me nuts. This is my opinion. If you take the time I am sure you can do it right. Just make sure you touch every surface. You hand is the best tool. You eye is the next best tool.
Honestly, the best option is to take it to a shop if you want a base coat clear coat paint job. If you are ok with a single stage then you can shop around. However, single stage paint jobs are “harder” due to the narrow “window” you have to work with to make it look good (Technical garbage like spray pattern, distance to atomize the paint particles, proper mixing, spray back, etc…) so you need a more experienced painter. Otherwise you will gets runs if it is too heavy, fisheyes if it is not applied correctly, and even peeling if it is not prepped right.
If you are confident in your skills I say go for it. The whole thing. PRACTICE PRACTICE PRACTICE PRACTICE on scrap panels. Shit, even paint tool boxes or anything metal to get your technique down if YOU want.
If you are not confident…I would suggest not using an Amateur, no offense to anyone. There are some guys that know their stuff. I’m just thinking that this job is too big, and too important to you, Brian, for anyone but a shop…or yourself.
There is a reason that guy with the Chevelle spent those number of hours…I would do the same on my car.
Just a side note…I took my car to Fineline Collison, in EA. For the Work I want done the bill is $4,500. To me it is worth it. But, I have a LONG list of other things to do to the motor, suspension, brake setup, interior…it is a ways out.