First, way to put your family first... that is what is the most important. Toys can come & go... but family is first.
You have been pretty open about this; so i will give you my .02 cents.
1. The market is tough & gas is 4.00/gal here in Oregon.
2. The market here (may not be the same elsewhere!! My opinion only!!) for 75 to 81 Camaro's is very soft. A V8/Auto car in good condition will sell for less than 2K in the open market here. Quick sell or auction will bring 1K to 1500.00. The engine being re-built or different really has no bearing on the car much (unless it is a race car). It is tough when you probably have more than that in it. It may be that no one here wants to hurt your feelings. Personally, I think if you had stock wheels or rallies on the car it would have no difference in the value at this point. Maybe sell them separate to someone who appreciates them.
3. This part of the forum is for guys to get away from selling, SPAM, offers, etc... so we can talk about racing, hot rods, & our day in & day out conversations about being friends. Don't get discouraged; this is a great place to hang. I would love to tell you good news/lift you up, but I have been in your shoes too many times & had to take less than what I felt something was worth. At any rate, I hope you prove me wrong. Good luck & God bless!! scooter