Thinking about putting this on my boat

Anyone have any input on this setup?
Where would I find an off the shelf turbo that is the right size for my setup ?
Any input on sizing the turbo for a setup like this ? And a good vendor to order one ?
www.NOT-A-SPONSOR.com.org.gov.net.edu
Here is what is in the fine print of that eBay ad:
Item is Sold "AS IS " , no warranty is expressed
If you like to roll the dice.... go for the cheaper one.






