If I'm honest mate, you will never see a return on the money you spend on this project, but then, who cares?
I own a Civic Coupe, and instead of buying something which is 'better', I'm spending thousands and thousands building this car up into a truly great feature car. I won't see any of the money I spend again, but to be honest, I don't give a s***! I love the car and want it to be special and a bit different from everyone else's car.
If you love your car that much then why not spend the money as well?