An 8088 should be less than $50.00, I think there has been one in an ebay store for a while that isn't selling. An A2286 will be a little harder to find and more expensive, but they are obtainable if you are patient.
I have been looking for an A2386 for a long time now. I never should have sold the one I had. They are hard to find and likely suffering from battery damage.
Here is an 8088 with a couple other cards
Bridgeboard on EbayGood luck,
Jeff
