Hi Dynamo,
You can never have too many MK kits. Unfortunately, MK ceased operations as of 12/31/2011 [] (at least, that's what I've heard from reliable sources). The Wild 7 was Akiba's 4-stroke design following his Beetle. It was designed for the original YS 120 and used Naruke's Silent 120 as a size reference; so not very big for a '4-stroke' pattern design. I think it would fly fine with a YS 61AR or a Hanno Special if kept light. The kit is a think of beauty with the shaped parts and full sized sheeting (I have a kit myself). I don't know the exact year it was designed, but I would guess around 1988.
It is a beautiful airplane- enjoy!
-Will
PS it definitely qualifies for CPA status - designed by/before 1996