The Lewis Ascender can trace its roots back to the Piper PA-18 Super Cub. & The Wild Double Ender. This aircraft features helicopter like visibility with out the aircraft or operational cost of a helicopter. There is interest in offering the aircraft as a kit but its currently a one off.

Several articles on the aircraft and the people behind it:

https://backcountrypilot.org/forum/ascender-aircraft-26682

http://www.bushplanedesign.com/news–updates.html

https://en.wikipedia.org/wiki/Lewis_Ascender

https://en.wikipedia.org/wiki/Wild_DoubleEnder

I can find no models, RC models or any related merch at this time.