Hi, I have test flown the Curare ARF in Austria a few weeks ago. I can confirm it is not only endorsed by Hanno, he is the mastermind behind the project. Both Hanno and Schweighofer have tested the pre-production models extensively, with glow and electric power, and the delay (should have hit the shops a year ago) is in part due to the testing and subsequent change orders. The ARF model is based on the MK Curare 60 drawings.
Hanno has spent a lot of time with setting up his electric version, and plans to publish his own settings for all control surfaces including the flap/elevator mixes, dual rates, expos, CG and so on, so everyone can start with a perfect setup. One thing that was only recently discovered was that there is a difference in knife edge mix between electric and glow setups. Due to the battery position above the centerline, a slight increase in dihedral is recommended for electric setup.

The ARF has a very nice battery tray/hatch functionality, and also accepts glow engines with or without pipe with no modifications. It has a fully sheeted wing and stab, and it's beautifully built and covered. It is reported to weigh half a kilo less than the original.