I'd be concerned that Polaris won't be supporting Victory much longer, since their announcement to stop producing the brand last year.
IF the price more than makes up for the impending lack of parts & or service, maybe it would be ok for awhile or until something major is needed in the motor.:Shrug:
Adding a few thousand$$ trike conversion kit doesn't sound like a wise investment, to me.
If you're seriously considering this bike, I'd just ride it as a 2 wheeler as long as mechanically feasible, again, if it was me...