Don't get me wrong guys i absolutely love being a toolmaker and considering i became a master toolmaker at the age of 31, i must have a decent amount of skill. But im not going to see any of the big money come my way by cranking handles, those days were long gone before I was even born.
I also know that H.P. isn't free. I put 5 different motors in my 67 beetle before i got it to do 100 mph with out blowing up. But that was mostly trial and error on my part. Now i have the power of the internet at my fingertips and i can ask stupid questions without trying out some stupid idea on my car first (lets not talk about the giant 1-1/4" off-center hole in my hood right now or the half rebuilt steering box on my dining room table)
As far as making custom parts, i can make just about anything i can think of. The only limitation is time. If i make a part just for myself then im going to work on it after i take care of work, family, school, bills (this will take forever to get done). But, if i find a group of people that want a certain part that isn't made anymore and their willing to pay for it. I can go to my boss and say "hey this many people want this part and i can make it in this many hours" He'll say "OK do it" and instantly the custom part goes into the work category and it gets done. BTW i found a company that makes a 60 irs at the end of HRM, i don't know if it will work for the C3 or not. My guess is it probably will.
I think my CF phase is starting to pass now, i ordered some of that CF vynal available on ebay, it looks super nice, but I don't think its the right look for my car. Although, i have been tossing around the idea of getting some loose weave carbon fiber and placing LED fabric under it so i can change my car color at night. I get all giggly when i think about a cop trying to chase down a vette that changes from red to blue to green to purple to yellow to orange. What would the cop say on the radio? "I'm chasing a red, no yellow, no purple, no orange, oh f*** it just let him go"