vMoL requires a lot of knowledge of the trial. You can't just pug players, you must meet certain criteria in order to be allowed to run it (Dps benchmarks, sets, knowledge of the trial mechanics). You will have to get into a progression guild in order to run it. I assume you only want to run it for the skin? Well then yeah, find a progression team and prove your worth as a member then think about running it vet.