what size trailer for rzr xp 4 1000

I'm looking to buy a trailer for my RZR XP 4 1000, but I'm not sure what size would be best. I want something that fits the RZR comfortably while allowing for easy loading and towing.

For those of you who haul a RZR XP 4 1000, what trailer size do you recommend? Would a 12-foot or 14-foot trailer work, or should I go bigger? Also, any tips on trailer type (flatbed vs. enclosed) and ramp recommendations would be helpful.

Thanks in advance for the advice!