I agree with MarkII about the LMS motors. Assembled a couple of G77 R redline motors several months ago. Just used 5 minute epoxy. Got to fly the G77-7R a couple of weeks ago in an extended NCR Eliminater. Great boost straight up into a clear blue sky.
I have also flown the LMS F20W. Just use a quality epoxy for assembly.

YMMV

Chas

Agree with Chas about the comment of using a QUALITY (minimum of an actual hobby-store brand like Devcon, etc) epoxy to assemble LMS motors. Do not use cheap "bargain basement" epoxy. The cheaper the epoxy, usually the more "fillers" it contains and the weaker it bonds. High-end structural epoxies such as West System or Aeropoxy are probably overkill for assy. of SU motors.

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If it's Enerjet or Astron it's GOTTA be GOOD !
Yes, there is such a thing as NORMAL, if you have to ask, you probably aren't !
If it's FAST, LOUD, DANGEROUS, or borderline UNSAFE, COUNT ME IN !
99% of ALL regulation is OVER regulation !
INDIVIDUAL FREEDOM trumps any and ALL supposed collective good

Yeah, I've had my eye on the g77r for a while too, If it works as well as you and the specs say, I'll probably use it.