That is a lot of modification for a pretty weak justification. Just cause your doing track days, doesn't mean the engine doesn't need to perform as designed. If you want long interval between top ends and cheaper costs, get a street based 2-stroke of a 4-stroke.

I looked into a couple after market piston options for the RS and didnt really come up with anything that was determined to be reliable.

As fonty mentioned, you can go longer then Honda "recommends". I know of people that went 4-5 full seasons on a crank, as well as multiple weekends on pistons with no problems. Proper jetting, good oil, and non-leaky engine will give you a pretty decent run on a top end.

But using cheap oil with a low mix ratio, putting your bike away after a weekend without going through it and checking tolerances and you get what you deserve (says the guy with a seized Aprilia RS250 after letting his wife play with it for a weekend).