I've got a spare motor that has been sitting around for the last six years. Got it out of a wrecked rx7 with 10,000 miles on it; was in very good shape with excellent compression before being removed. Stored it indoor with ATF fluid in the combustion chambers; turbos submerged in ATF fluid etc ...

Should I freshen the water o-ring, apex seal, oil seals on the rotor, front and rear main seals?

Who should I take this to, KDR? Peter the Tsar?

 

if i were you, i would have it street ported(big street ports) and have it waiting for you, for when your motor pops you have a spare already waiting and ready to be put to good use.