Yup, me again, those Osrams are MR11 size, tonite I found some 35w flood Sylvania with the enclosed reflector, 2 for $7.50 @ Lowes.
Can't seem to find the bigger MR16 in an enclosed style.
Also can't find anything lower wattage than 20w.

My big find was at NAPA, PN#784504 is a pak of five crimpon
fittings to wire up these bulbs, they are a good fit, takes 2 per bulb.
Some track lighting would have the correct socket, only cheap iffn you found some in a dumpster.
And for the real scrounger, a XT keyboard connector seems to have the correct sockets, be a real fiddly salvage job though.

Next is to design a shell and mount I'm happy with.