ORIGINAL: LNEWQBAN
gosk8ing,
Your wing will have CL=0.22 at zero degree.
If that suffices the lift that is needed for level flight at cruise speed, then, your fuse is going to look and fly horizontal.
That NACA 2415 may give you a downwash of -2 degrees, which may be enough to push the stab down to compensate for nose down moment and static margin and keep things level.
If not, and you install the stab at zero, some elevator trim will solve the problem.
For the next built Chipmunk, you will know the proper angles.
+1
Because it isn't symmetrical, the wing's gonna generate lift, even at 0 degrees.
Fwiw, I would build it at 0/0. That will be pretty darn close.