The second one MIGHT be one of the old Sig Kwik-built kits, either the Chipmunk or the Mustang - I think the wingspans were around 60" or so. These featured profile fuselages with ABS plastic shells to give them a full-fuselage shape. THey also had a Cessna in that series - but this obviously is not one of those!

I think they went out of production in the late 1980's or early 1990's or thereabouts. Doubt you could get the shells anymore, but Sig might have the plans available - could be finished off as a profile sport model.