Thank you for the comment Truckracer.
My plan (subject to change at any moment ; ) ) is to probably use a DLE engine.
As to the ABS parts, this is a proper dilemma for me after reading your suggestions. I usually attempt to construct my aeroplanes the way they were designed (as much as practical). I do use modern RC gear and engines, and when single servo is used for ailerons I always change to individual servos, but, other then that, unless there is a safety concern I am attempting to follow the original designer intent. I will have a think about it when I get to the fuselage as your suggestion is making a lot of sense.

Back to the built, following a light sanding of the wings foam cores imperfections, I started the process of gluing the spars:





Cheers,
Eran