RE: Do you recognize these ARFs
These type are 'builders' ARfs IMO. Be prepaired to replace or supply good hardware, gear and tires, and remodel how the wings are attached and how the belly pan/scoop attaches. Go over the firewall carefully for solid attachment and really, the whole plane, for glue joints. The graphics will not be scale, and you will have to do some work to the cockpit if you like something more realistic. They can be bought very cheap, as a rule, and fly well. They are what they are, but most all planes these days are built from laser cut parts and assembled in jigs. I have built some of these into RTF planes and sold them turn-key with all the mods I mentioned, and the guys liked them. It took some work though. If you have some building experiance, go for it, if not, I'd recommend you choose one of the offerings from name brand kitters like H9, or get help here on RCU with the assembly.