For all the reasons people have mentioned I think it makes the most sense for me to use essentially scale incidence on the main wing (which would be the most obvious feature) and initiall set zero on the tail and zero on the engine. Then after the first initial inflight trim, I'll do as Donnie suggests and, if necessary add in a bit of positive stab (and possibly a degree or so of downthrust).

Donnie, do you add downthrust by adding a shim to the whole engine mount (if you've used an engine mount vs. wood beams)?