I also agree with the above and hope you will not cut up a rare '70 Cuda rag top.

How about getting a hartop '71? Aren't there places that can turn hard tops into convertibles? I remember some years ago there was a guy at the 'Nats that was going to sell kits that would turn any E-body hardtop into a convertible. I guess his business didn't take off because I never saw the kits for sale.

I think the best advice is to save up for a '71. In the long run it would certainly seem to be the road of the least aggravation and problems.

Good luck.