jersey numbers

i had a run out filling in for paddy on the O, and think ill be confident to fill in fo him when he needs a breather
so could i double up as LB/FB please just thaught id best ask before numbers get done,

if im allowed a choice of number can it be in order of preference
32,34,35,83,


and i promise to get some extra catching practice in. It seems as soon as the ball is above the shoulder level my hands turn as loose as a hookers hole
As i said before ill play where best for the team