Sounds like your fed up with the one you have! Don’t give up so quickly! Check your timing if you haven’t already ! It’s a nice looking Speedster! When I bought my speedster I fought it all the time it was a coin toss if it was going to be a Good Day or a Bad Day every time I turned the Key it was always something with that motor. I had a New one built and knock on wood it was the Best thing I did its so nice to go out and turn the key and go for a ride! As for A/C that would be Great especially in Florida. But it’s a convertible I live in Ohio and there are certain months I can’t drive my car either and wouldn’t want too!! Don’t give up so Quickly I bet you could get a New motor built and put in in a 1/4 time it takes to have a New Car built not to mention a hole lot cheaper.