Hello Flaphoto .
I suggest that you look into :
www.gliders.dk and
www.f3j.dk
This should fullfill all your needs for setting up the mentioned model.
As for my self : I have flow with sailplanemodels in class F3J for years and years and mostly with V-tail models but also with T-tail models.
Both are exellent but maybe is the T-tail model a bit easier to control - not thjat it matters - look into contest reports.
May i wish you all the luck you need !!
KR
hld - OY-9901