james - not to poopoo on your speedster idea but, have you really thought this thru? You say you want something more wife frendly, well let's compare. 1, speedsters are not safe, well.....as a beetle, 2. i hope she likes to be cold, wet, and have really really messy hair, 3. they are VERY unpractical.
That being said, they are a BLAST to drive, a bit hard to sort out properlly, and parts are semi hard to come by. I can only say this from expirence, because i have a 74 std beetle, and i had a speedy; here's a pic:
http://i32.photobucket.com/albums/d13/69martin/speedster/DSC04489.jpg
i Loved the car, but it became aparent that i really wanted my other dream car being this:
http://i32.photobucket.com/albums/d13/69martin/69%20charter%20r%20t/DSC00910.jpg
i had a 69 charger before too. Sold it when i got the speedy, that lasted about 7months, then the itch for the charger came back. So i found a 69 charger r/t, #'s match car, 51000 orig miles, true r/t car, all paper work, original bill of sale, ect...totally unmollested, mint, no rust at all, 440, 727, 8 3/4 suregrip, and lets just say i STOLE the car, sold the speedy AND put $ in the bank!!!
I could'nt sell the beetle, there's just something about it, had it for so long, built the whole car. The main issue i had with the speedy is that i could'nt take my wife and my daughter in the car for a ride at the same time. Speedy's are great if you have the other "toy" as well. Just something to think about since you've got a sweet bug, i'm planning a turbo for mine as well, i could'nt imagine why you would sell that bug?
martin