Like above, I don't think you can get a ready-made suit anywhere. However, there are many different people or companies that commission fursuits. Costs vary a bit and you'll have to wait a little while for the suit to be made.
Actually, there is a site to buy pre-made/used fursuits.
https://www.furbuy.com/ is an auction type site where people list art/suits/partials/etc. I've never used it, and it may or may not have what you're looking for but I suppose it's worth a check.