Svenska IF-båtförbundets forum

Does anyone know if the original Tord Sunden/Marieholm line drawings and spec sheets are available for the M26?
The IF boat drawings are available, so perhaps they're to be found on a swedish site somewhere?

Are there any notable material construction differences between the if boat and the M26, such as deck core, hull-deck joint, mast step, shroud-deck hardware etc?

As I understand the M26 has identical lines as the IF-boat. The only diference is the deck, cockpit and cabin lauyouts. Maybe the freeboard is a bit higher, but if so, this has certainly been done by a simple extrapolation of frames curves.