the cip motors would work well for that, built by a good builder, probably one of your cheaper avenues
I suspect most builders would rather help you decide what parts to put in a motor than build solely from your box of parts, mainly I would say, because they would want to ensure they are building with parts they trust. I wouldn't want to build you a motor from your parts and then try and say it will be reliable if I didn't have a say in the parts.
I suggest you make contact with the local builders and see what they say before you go buying parts or you may find yourself with a box of parts and no one to build it, just a thought, I could be wrong.