GL1
Plywood Okoume
Plywood Sundries
Balsa
Wood Spruce
and Douglas Fir Flitzer
Z21 (Roundtail) Wood Pack Pulleys
Permagrit
Tools 
Sundries
Gaboon Marine Ply to BS1088
| 4'0" x 1'0" x 9.0mm sheet | £6.20 |
2 are required for the compression ribs of a Flitzer.
It's not true that Pete Smoothy of Airworld UK used to work on Bristol Scouts - he has just been around the aircraft trade a long time!
Airworld UK is well worth a browse!