Michel, Yeah, maybe carve a piece of balsa wood quick. Tamiya's 97 gave you a form. Sometimes if you just look around quick you find something laying about, an X-acto handle, a wood dowel, brush handle, etc. Trick is to have a lot of stuff laying about...:) Those screens don't have to be perfect anyway as they get bashed about pretty quick.
I'm about to restart on this one, now that the Shiden-Kai is done. Just rescued my tank crew from the storage unit.
Dragon's plans can be a gas, can't they?