Welcome to the new and improved Proflex / K2 Tech Forum!
You could probably sell that Crosslink Carbon w/ Smart Shock for more than enough to buy a modern sliding fork, with money left over to pay for the adaptor you'll need for that Manitou Swinger shock.
I like that colour scheme! Quite unusual and a perfect contrast to the yellow decals. If you like your Crosslinks then keep them. As you're buying a second bike it will be nice to have a modern bike and a traditional Proflex to appreciate the contrast. Can't wait to see your finished results.Chris