For non-restricted: pick it, buy it, get it, bring it home (get it shipped to you) - all possible to do in one day.
For restricted: get membership at the gun club, buy restricted, apply for long term att, CFO will perform some check on you and once done they will issue to you two transport papers - long term att for your gun club and short term one which you have to use while picking up your restricted from seller.
When you buy restricted seller will send info to the CFO and you will get your short term ATT ones transaction is aprooved by your CFO.
Just keep in mind, if you buy restricted you have to be a member at the gun clud first (unless you have a collector status)
Good luck !