I'm not a player still so my opinion is not that relevant. I have first 3 questions.
How many players do we have in guild (minus Paladorin (my dwarf from test acc) if he is still in)?
Level distribution?
Of those how many are good players, meaning how experienced are they in gameplay, do they know how to use their class (this is important since I met players that were high lvl but were complete noobs)?
Somehow I feel that training our own members is easier than recruiting enough high lvl players. In my experience (I used to manage guild in one other RPG) high lvls avoid new guilds for they see them as weak and as such can't offer them much.
There is an option of creating twinks. They will lvl much faster than they would normally. There are few trinkets such as:
Arena Grand MasterBinds when picked up
Trinket
Equip: Increases your dodge rating by 12 (26% @ L1).
Use: Absorbs 750 to 1250 damage. Lasts 20 sec. (15 Min Cooldown)
It demands a bit of work to get it, but as a song saids:
"With a little help from my friends...". There are others I can scout wowhead for such items if you like?