Wrapping is straightforwards, just take your time and yes, some extra hands can help come tying-off time.
Just remember when wrapping to start at the bottom of the pipe and work up, that way the overlaps are pointing downwards and don't get so much road crud accumulating. Most people start at the head end and wind up with the leading edge of the wrap facing upwards/forwards where it picks up everything, dust, dirt, dead insects etc.
It also helps to soak the wrap in warm water for a few minutes, it makes it much more pliable and slightly stretchy so when it dries it grips the pipes more tightly, it also tends to stick to itself better so makes it much easier to fix the metal ties.