I tried a Telemaster 66 many years ago and wound up putting it back in the box. The wingtip blocks could have been used for engine mounts.

Couple of years ago my son and I built the LT-40 kit. The Sig kit is a modern production effort which is marvelously engineered. Most of the fuselage is lite-ply, laser cut and everything locks together. Excellent instructions. We took a week and were covering the airframe.

The Sig trainer now has about 50 flights to it's credit and is a terrific flier. I'm sure we'll keep enjoying the LT-40 for years to come.