Merc, price up a real basic transofrmer from tricky dickies/jaycar and then get a big diode bridge and a couple of caps and knock one up yourself. Becuase you’re only using it to runn a charger you may find that it’s mucho cheaper.
Other option: 8A car battery charger, usually puts out enough voltage and current to act as a cheapo supply.
Both these presume you don’t want some mega clean nice stable 12v but rather something slightly over 12v (13.8ish) and with the kick of a mule.
A.
