18 year old thread, and no update from the OP?
Oh well, that happens even on busy forums.

I picked this up off RCGroups about 4 years ago, not as a trainer, but a relaxing plane, slow motion I call it. I don't like these bird cage kits though, a real pain to build.
Takes more patience than I want to put into it, having built an Elder 40 before, similar ladder of match sticks make up the fuselage. It is however much lighter, so that's the benefit. Construction reminds me of Guillow's kits when I was a kid.
This yellow Seniorita is still in my hangar, I replaced an OS .48 Surpass, with this Magnum XL .52 4 stroke, dropped right in place. Flies great in spite of its aged look. They all look great in the air. The landing gear is held on with 1/4 - 20 nylon bolts. Only thing I want to do is replace those inconvenient dowels with 1/4 - 20 bolts and threaded hardwood mounts to secure the wing without messing with rubber bands. Being glow powered, the combination securing a wing down with #64 rubber bands is just messy.
It flies the same as a Kadet Senior or LT-40 really. Just a lot easier to transport and store. I replaced the servos, the ones shown in here are rather "crispy" and for the low cost of replacements these days its peace of mind knowing that won't be an issue to cause a crash. If I remember correctly this plane was $140 with engine, servos, receiver, just as you see it. When I sold the Surpass, that was $120, this Magnum was $60 and it runs as well as the OS did.

You can't get this kit from SIG at this time, and anyone selling one is going to gouge you good for it, you might do better finding one second hand. Most of my planes in the hangar are hand me down planes from locals advertising on the forums or other places online, cheap. Saves you a lot of money, and the less you invest in a trainer, the more fun you have flying it, at least that's my thought.
This Seniorita floats in about 15 mph, takes off in about 25 feet of runway. It's fun, even if it's a trainer.