I'm another "old-timer" who got his start with the old Comet stick and tissue models. Being an Air Force Brat, I bought them at the base hobby shop for, IIRC, a dime. A tube of Duco cement was about a quarter so my half dollar weekly allowance went a long way. Best of all, there were always off duty Airmen building large balsa flying kits who didn't seem to mind kids who were probably the ages of their little Brothers hanging around watching and learning from them. I've still got a few balsa scale kits in the stash like a Sterling A-6M Zero that scales out to about 1/9th. If built as an RC flyer, it would have to be semi-scale.
There is a "Museum scale" Klemm L-25B by a company called "Krick". Famed German pilot Ernst Udet used the L-25 for aerobatic displays. The plans are scaled down from full size aircraft plans. Wing span is nearly 2 metres. Last is a Guillows "large size" P-47 which is 1/18th scale and can be built scale for display or, semi-scale for flight.
Sorry to babble on so but, y'all brought back some fond memories of being literally covered with sawdust, the wonderful stench of AeroGloss Dope and Ambroid cement...Thank you for that.
All the best
Ray