Hi Tony,
My husband is a carpenter by trade but has been a site manager for a while now. We are also trying to get a sponsorship, my husband goes on Seek every night but also not having much luck. The only thing I can suggest is to start contacting all the new house builders. My husband has had a few responses but they do not want to sposnsor anyone but said if he was over there they would give him a job. We are still trying to get a sponsor but have decided that we do need to start the process rather than hoping for a sponsorship. We are just down the road from you in Stanmore. Good luck
Deb