Josh, I love you man, but I need to be brutally honest here...

If you were offered much more than 20-25 for your car, you should take the money and run all the way to buying that E55, it is simply not worth that much in any sane person's eyes. You have a car that would get beat by a lightly modded SRT-6 for $10K more money. Rare, yes, valuable, maybe. After all, Bob, the first NA V8 had upgraded EVERYTHING on his car, C32 brakes, SRT front, fully adjustable suspension, wheels, etc and he got well under $20k and if I remember it was for sale for a while. Remember, you are talking about either buying a car or performing a major modification that can not be financed through typical sources.

I was offered a full SRT-6 swap retaining my manual trans for $10-12K turn key, I was also offered a 55K conversion around $20-25 turn key. There were many members here who were offered these conversions, and you see there are only a few in the world. You are talking about doubling the purchase price of the car for an NA V8, and I don't think many will bite. The ones that really want to do it, will do it themselves, they will still need you for ECU work, which is an invaluable service you are providing, and I thank you for it!

I am not trying to be a Debbie Downer, just don't want to see you quitting your day job to persue something you may only do a handful of times...

(don't hold it against me when you are pricing my future ECU work LOL )