RE: World Models Mach II ??????
Lots of bang for the buck. There are several at my field, most with a TT .42GP, but a few with .46's. The .42 makes it a nice flying second airplane. With a .46 it's fast and will do anything. You'll enjoy this airplane.
I made a twin fuselage out of 2 kits and spent less than a single twin kit. I'm using 2 OS .46AX's and get tons of vertical. I did replace the gear with 3/16 wire since the twin is heavier and tends to bend 5/32 wire gear. No trouble with the mounts.