My mechanic tells me I need a new head gasket and transmission, for a cost of about 3800. I replaced the head gasket 5 years ago but this time around I'd be replacing the radiator as well. It's a standard transmission, not automatic. The car is in pretty good shape with only 135k miles on it. I'm not exactly flush with cash at the moment, and retirement (fixed income) is months away. I'm wondering if i should use that 3800 toward another vehicle or fix what i have. Any thoughts on this are welcome. Thanks.