I got lucky today. Went all over town looking for a V1.5 and under. All the Wal-Marts had new May, 2004 manufactured dated Xboxes, but I got lucky and found one at K-Mart that had a Feb, 2004 manufacturing date. Brought it home, opened the box really careful just in case, and plugged it in.
I thought it would be a V1.5 at first, but then after cracking the case, the LPC had it's power and grounds.
I had it soldered, flashed, and completely done in 30 minutes.
Keep your eyes open guys. There are still some TSOP Flashable Xboxes out there.