Chris,
The relacement piston will relap in with existing sleeve,best with a honed liner. A light resized tightness works well the V-Spec engine model.Do check crank pin wear that it isn't more than 0.003" high+low mic reading. Send crank along with P+S set if you wish for my inspection.
With the maintenance you described I have seen V-Specs exceed 10 gallon engine life from New. I had one at around 11 still running.
I think your set will benafit my reconditioning-resizing service the set you descrbed here. Mabee some one with a similar expereance will chim in here.
Good luck

Kind regards

RayAracing