This wing was designed for Half A Combat(TeeDee and similar performance plain bearing engines)  Span 31.5 in.  Area  200 sq.in.
The original HalfLite was 32.5in. span, if I remember correctly.  The current cores are cut, 2 sets in a block, with about 19in length(96in sheet/5)

Root thickness is about 1.1in  about 15%.  It's been used for 1/2A stunt,  Half A Combat, some racing.
Cut from 1lb/cu.ft. white EPS(styrofoam) specified for One Coat stucco siding- strict limits on density variation, pinholes, density variation.

2 sets in a box  $25
4 sets, loose pack packing, cores only-  $35
plus shipping- between $10 zone 1 up to $16.50+/-

picture shortly

Guess it's no longer shortly.  I'll see what I can do.