have you thought about a BOP DMD kit build, machine build with a colour dmd as a unique build - that is something I would like to do just for the uniqueness but the timing is not right.
http://www.dutchpinball.com/orderthe MM one will be huge and with them being remade you might not get your value out of it.
if you still launch into it, enjoy and will watch the build with interest.
I did post in the Restoration section a site for repro metal components the other day.