The most stress less and easiest way unfortunately is to ring around dealerships, use Vin number to get non chipped kety cut to open door of car for tow truck.
Tow car (hopefully your in NRMA so to is free for first 30klms) to dealership, buy 2 keys (so you have a spare set), dealership will programme both for single use and fee of soft ware.
I went through similar experience with C70 which only had one set of keys so I found out after I bought it.