Shepherdii I got on eBay for $20

Won in an auction. A Shepherdii this size with at least 4 peduncles is a good deal for $20 I think. The white dot on the peduncle is sap I think, NOT a mealybug. I tested it with alcohol, and it didn’t budge. Ever since I had infested plants come thru mail I check every new plant I buy so thoroughly now lol. Any advice on how to manage the vines? I would like to try and trellis, but these vines are already on the harder side.