I can supply some of the physical stuff that you would need..... however the only man in the country with the experience, knowledge and integrity to build you that engine from all the parts that you will need is Tim Williams in Coalville, Leicestershire.
He can do all your software too.
I can give you his contact details if you email me
don@kalmar-union.com otherwise join up at
www.t5d5.org and get him through that site.
Don.