Keep the miata for track days and autoX
convert the WRX for rally cross ?

... If you want to Try your WRX in a rally cross , later during the season I'll have a full spare set of rally coilovers you could borrow. just slap some snow tires on it. (or i have rally tires on rims i could loan you, but they 15"s and i think your rotors are 15"

lol)