Dear Brent,
I see now. The problem is with my poor English: the right expression is "yard squared", and not "square yard", as I thought at the analogy of "cubic centimeter", or "cubic inch"
Well, the .75 oz. glas is absolute a good basement, practically everything can be coated with it. Most components made of mid density (34 ozs / cu.ft) Bluefoam (flaps, wing, elevator, fin-rudder) will be strong and stiff enough by single coat.
Naturally, the surface of foam must be stabilized by thin resin and sanded to be perfect before coating, because no way to correction: it is forbidden to sand the glas into half or less: the strength comes from the fibres, not the resin.
When you think to reinforce a spot somewhere (typical is fuselage sides right before the horizontal stab), I suggest plus coats put on at first, and next day sand the contours gradually down to the base. ( 280 grade wet paper).
Where more pieces of glass meet and overlap, do the same.
When I encountered how many portions of resin I used on the entire plane, came out 25-30 portions (most of them were 10+4 or 20+8 ccms, no more). It means different 25-30 days certainly.
Istvan