I dare say that any airline would be up for sale if the owners were tempted by a bucketload of cash.
KLM Engineeering is a an asset I can't see them getting rid of. Not only does the Norwich base maintain KLM aircraft, it does a lot of work for other companies as well. Having just signed major 1 - 5 year engineering contracts with Brittany Air, TNT and Irish City Jet, as well as having many other worldwide customers, I think that those companies would take a very dim view of KLM offloading an engineering outfit whose reputation is second to none.
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It wasn't me.