What engine do you want to use?
What's your budget?
Do you have a time frame in mind?
For example me and a friend converted mine to RWD cosworth power in 11 months and spent about £15k and I started with a running saff Cossie!
Let me know if your serious about having the fabrication done and I'll ask my friend if he'd be interested in doing it for a 3rd time. (Both cars are in fast ford mag so you know there are quality builds)