RE: Bob Martin "Katie II" glider
The Katie II has been out of production for years. They show up regularly on ebay, RCgroups and even here in the for sale section. There are lots and lots of better flying planes. The Katie II was a rather sedate aileron trainer. If I remember right it had a 2 meter span. The Filip 2M slope might fit your bill. If you don't mind EPP then Leading edge Gliders has a new 2 meter plane called the JackHammer that looks like it would fly similar to the Katie.
TFLG