Congrats on the classic bike! For a vintage motorcycle, I'd personally lean toward enclosed transport if the budget allows. The extra protection from rain, road debris, and flying gravel can make a real difference, especially for older paint, chrome,
Stickman Hook or original parts that are difficult or expensive to replace.
Before shipping, I’d also take a lot of detailed photos from every angle and note any existing marks. That way you have clear documentation of the bike's condition before it leaves.