Here are a few suggestions and questions:
Is there any clicking sounds coming from the engine compartment when turning the key?
You said battery has a full charge, did you test this with a meter and di you do a load test?
I would check a couple of things after determining the bat is good:
(A) starter connections and battery connections and all grounds
(B) Starter relay (and it's connections)
(C) Fusable links and fuses (I'm trying to find you a copy of the fuse box but am having no luck, you may have to get a repair manual and look it up, public library or buy one)
(D) If the starter is making a clicking noise, take a wrench/screwdriver and tap the starter
solenoid and its being cranked. Just a moderate tap (do not hit hard).