Sleeve block or aftermarket pistons?

[nsxperiment]

I have a '92 with about 100,000 miles on it (odometer was broken, don't know actual mileage) that I bought last year. I was having overheating problems last summer, but had to drive it anyway. Unfortunately, I blew a head gasket around the #1 cyl, but limped it home (stupid). I cooked the engine pretty good in the process. I refilled the coolant then started it just to confirm the problem. The #1 cyl was full of coolant (incompressible fluid), so I was concerned at that point about a bent connecting rod or valves. I decided that a complete teardown was in order to check the condition and clean up the bottom from the coolant mixing with the oil. All of the cylinders were tapered with the top being at or just over the service limit, and the bottoms under the service limit. All of the pistons measured good. I would have put it back together as is except for some deep scratches in the #5 cyl. I am doing all of the work myself (except machine work) and cost is a major issue.
These are my options as far as I know:
1. Do I sleeve the #5 cyl and bore it back to stock and reuse my pistons?
2. Do I sleeve all of the cylinders and reuse my pistons?
3. Do I bore the block and use aftermarket pistons?

Does anyone have experience with sleeving an NSX 3.0L block? Is there a special coating on the factory pistons that I will need to request on custom aftermarket pistons? What do I need to do regarding balancing? Any relevant info would be great!

 

[sjs]

You should confirm that block & heads are not warped if it overheated badly. That may have been coved for the block when you measured the taper, but you should be sure.

As for your questions, I would find a way to re-sleeve them all and get rings at a minimum and pistons if yours look questionable. I know you said cost is a major issue, but don't waste what you do spend.