GM - Windy's post is pretty spot on.
Speak to the guys at Shoreham, I know them all and can guarantee that you will be heard and that your queries will not be the first that they have heard. Best to have a list of questions at hand and know the PFA build #before you ring them, though.
6 yrs ago I bought a box of unrecognisable parts and now fly it!
The pfa deputy chief engineer was/is excellent as are the rest of the team.
Stik