Aye Pinrestore does sell 18G.
18 Guage is 1.02mm
16 gauge is 1.29mm
14 gauge is 1.62mm.
Its not like theres 10 tonne of current there, but if i was doing it, id be using the 14G.
Any of the above will work mate
Thanks mate, I gather you mean the stuff the Qld supplier has should do fine