Wetwear Custom Wetsuits
These guys make and ship custom suits. They're a little pricey, but cheaper than I've seen some of the scubapro suits go for. You'll have to take like 35 measurements (you measure and give them the measurements). I bought one for my wife and it is an amazing fitting suit. We got all the options they offered for the 3mm suit and it was under $600.
They put zippers in both arms/legs and have a very lengthy main zipper. It make the suit extremely easy to don/doff while maintaining an excellent fit when zipped. You won't need a skin or baby powder to don this thing.