When I came to GMS, I stuck with this Blaze Wizard for a while, planning to get 120 eventually. I raised enough money to be playing other classes on the side, although nowhere near funding anything. The blessing is very nice to have. And I find BWs fun.
OT: A bishop would be good since you can easily save money due to heal, you'll train easily and faster in 3rd and fourth you can relax and get to a high enough level to fund others. Another great option would be Cygnus Knights namely dawn warriors since they don't need their secondary stat AT ALL for the duration of their 120 life span unless of course you want to use a ST or NRW which is pointless for them unless you want to make a UA or another sword warrior.
Definitely a warrior. any kind. they have no use for dex anymore, so they can wear any equipment or weapon of warriors, without needing the funds to be dexless or lowdex(or str and luk, like other classes)