Ardilles - probably best to start with some scale drawings of the availabele spaces so that you can play around with the configuration until you find something that you think works. Once that's locked down, you need to get on the interweb and get as many quotes as possible. Always best to phone so you can play one company off against another.
You should be able to do most of it yourself as long as your not after relocating drainage pipes, etc. Flexible hoses work a treat by the way
