love the user name. lol.
You can do one of two things cheap
1. Get one used either on here or on Zilvia.net. They sell their t25's soo cheap on there its not even funny. All you would have to do is swap the compressor housing and your wastegate onto it. No big deal
2. Buy a Kamak rebuild kit off ebay and rebuild it yourself if you have the skills to do it. Mark the shaft and compressor wheel before removing so that when you put it back on its lined up correctly and closest to its balance point. The rebuild kits are about 80.00 shipped and then its just your time.
Other than that if you want to upgrade go for a t28 or something of that nature.