I always have an opinion although sometimes not a popular one. I say because you are an experienced muscle car builder and you are a mechanical engineer, build the car you have always wanted. Most want a 32-34 Ford. But regardless, I think you would really enjoy building it ground up. Heck, these days, most all of the engineering is done for you. Little or no welding needed. It's going to cost more, but you will not have to put up with someone elses crappy workmanship. Plus you can build it your way and have that satisfaction as well. I dont count dollars on my cars. I enjoy the build process. So counting what life deals me, if it takes 6months or 6 years, i am enjoying my car built by me for me. Go for it, you'll enjoy it.