I think you'd like West Gosford near where I live maxwestern and NormK. There's a road full of industrial supply sellers like Total Tools, Sydney Tools and at least a couple of independent retailers of welding equipment and supplies who also sell tools.
There are two mower shops on opposite corners of a T intersection and a bearing supplies shop opposite them. They are abit dear wanting $7.00 a bearing for ones that fit a Victa wheel. They probably want closer to a tenner now.
One mower shop is primarily a Stihl dealer and the other Husqvarna. The guy I've dealt with at Stihl is not very friendly and the Husky dealers were better.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!