RE: Looking for and 80
Here is a Senior Kaydet ARF that one of my students converted to a low wing and also like ken he also added a removable 'Piggyback' carrier.
It is the stock eighty inchs and has a .91 Magnum four stroke. Flys beautifully with or without the loads. I have tested it with three different gliders now: 60 inch fling three meter Bird of time and something about in between that I do not recall.
John