Join the queue mate, I am looking for one too. You should have posted this question in the Wanted section, but never mind.
The 88's are much harder to find than sets from earlier in the decade – especially mint ones. 85-86 f&fs are more common. I saw a few 88s on eBay recently but their condition was not too good.
Like everyone else that wants one, we will have keep looking on the net, eBay and on this forum when a member decides to part with one.
Good luck