Please help fund my engine rebuild

The engine in my car over heated from a blown head gasket and now won't start. It needs to be rebuilt with new rings and bearings.
I have sourced an engine rebuild kit in America on ebay for $AUS350...I am having a friend pick it up and post it on to me. Postage will cost around $AUS150-200...The head will need to be checked and machined and will cost a further $AUS100-120 locally....the rest will be for motor oil, coolant and the mycause fees.
I can do the work myself to keep the cost down, but been unemployed I can't afford to get the rebuild kit any time soon without help.
Been in a regional area I need my car to find work.
My car is a 1987 Nissan Pathfinder with a Z24 4 cylinder engine.

Thank you for any help you can give.