Neither have I. As I understand it Nimbus 1 and Nimbus 2 differed only in the wings. Nimbus 1 had a double taper, open structure wing with inset ( Frise) ailerons. Nimbus 2 had single ( trailing edge) taper and was all sheeted. Nimbus 3.....who knows but Duane may now have the answer.

Apogee and Perigee were identical ( basically a scaled down Nimbus 2) but Perigee for some reason flew a bit better so was used at the WCs.

Here is one of the very first ads for the Perigee kit - from MAN February 1963. Yours for just $29.95.

Also, just for the record, Nimbus 2 was published in American Modeler June 1962 and Perigee also in American Modeler January/February 1963. As far as I know these were Tom's only published designs.

Ray