Z28 would be my choice being you have a tight budget,also because you described it as near mint.The others will have to have more $$ spent and you never really know how much until you get started on one!Plus that model Z is starting to increase in value due to availiabilty of other older models.Just my 2 cents worth.Plus some women don't like it too much when you start spending grocery money on your Classic Car and the children start loosing weight(LOL)
Bobby