Hi,
I've unfortunately been away from the forum for a while but that Kayak above ground pool, if it's what I'm thinking it is, is very similar to the FantaSea pool that I have. Both are sold and maintained by PoolSupplies.com.
Almost every piece of a Kayak or FantaSea pool is replaceable from frame, to walls, to liners, to accessories. Many can be up-graded as well. Depending on the size of the Kayak, you WELL may want to re-use it.

But about one thing I agree with Ben 100%: You WILL need a new liner for it. Period. Depending on the size of the pool, that can be pricey. Since I am far more partial to rectangular pools than round or oval ones, unless the condition of the Kayak parts require SO much expenditure, my bias is toward the Kayak.

Carl