ok,
If it needs apex seals,then theres a 99.9% chance that the rotor housing/rotor can be scarred,which means that only half of the engine is good,

I personally wouldnt pay much for A core engine,maybe $50.
12A are nothing rare,either are 5 speed N/A trannies.

Your talking about another $30-$50. for the tranny

core engines are dime a dozen,I have given them away free to friends in the past..

You cant really say "It just need apex seals" cause theres more to it then that,with the older rotary engines,theres a chance the rotor housings can be flaking,or just corroted (sp) coolant passes

hopes this helps some