I'm curious as to whether or not the M15 Belphegor or the Lala1 we re ever done in any scale. While the M15 would make for a nifty s ubject, the Lala would be even more interesting, being a heavily modified AN2. Any thoughts on the matter?

There are An-2 kits available (Trumpy, Italeri, and some small Eastern Euro companies), but nothing for the Lala-1. It'll take quite a bit of scratchbuilding to make that modification, but fortunately it's just a bunch of tubing you need. As for the M-15, all I could find was an RC website with a nice 3-view drawing (http://www.rcuniverse.com/forum/m_9349741/anchors_9362256/mpage_1/key_/anchor/tm.htm#9362256). Other than those tidbits, I think that's about all you have at your disposal.