I know you said kit, but then didn't know if you wanted to actually build from plans. Hobby Lobby has [link=http://www.hobby-lobby.com/giant_scale_stinson_108_arf_red_cream_airplane_590 55_prd1.htm]this Stinson 108[/link] as an ARF. It's pretty spendy, but it is a very nice model. I'm not familiar with the -# designations, so don't know if this would pass for a -3.