If I already have a buyer, which I do - where do I get a purchase & sales template to fill out and how do I find out who to go through for closing, the closing costs, etc?
If you already have a buyer, you can use a full service closing company for $400-500 or so, you can use a timeshare specialty closing company like Timeshare traders for $95 plus direct expenses (recording costs) total around $150 or you can do it yourself for around $50 if you only have one contract, a little more if it's multiple. You'll need a formal contract and that contract has to state specifics including the 10 day cancelation period.
What you'll need if you do it yourself, assuming it's Orange County, WDW.
contact DVC for their transfer requirements/documentation.
Complete the initial transfer form and send this plus a copy of your contract for ROFR.
Once you have ROFR, record that plus a quit claim deed (template for FL) and the tax form they now have (info on Orange County's website). Caveat, deed requires 2 witnesses extra to the notary (notary can sign separately as a witness).
Send a copy of the recorded deed plus the second transfer form that'll come with ROFR to DVC. That should be it if you don't need escrow.
If it's someone you know, I'd do the latter, if it's not someone you know well enough that they'll just get you the payment directly, I'd likely use a closing service. Title insurance is not generally a reasonable add on unless it's VERY cheap but it's paid by the buyer. If you want title insurance, you'll likely have to go the full service route.