This is what Matt @ Mechman emailed me in regards to a group buy:
"At our current pricing, we can’t really go down any further in cost. Up until the first of the month, our complete large case conversion kits averaged $700 by the time you bought the adapter harness, the bracket, and the alternator. They were priced that high because there is actually 4-6 hours of labor per kit just in building the bracket, assymbling the alternator, machining the case, modifying the regulator, assembling the adapter harness, and dyno-testing the unit. (nobody else offers the applications that we do for this reason) We have just recently put all of our conversion kits on sale for $449 COMPLETE, so that it is easier and faster to quote on the forums. We expect prices to go up at the end of the month; if they do we could then have room to do a group-buy discount ."
Sorry folks, but I am still considering using them for my alt.