The shipping amount on a rear assembly would be 5 times what a shop would charge to install them. However, you pay to fly me out there and I will install them for free
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As for Testtube, I have like a dozen water temp sensor's sitting around (which you can have one for free, just PM me your address and I will drop one in the mail when I get time). As for the heater hoses, are you talking about the metal lines on the passenger side that go to the heater core?. I probably have a set of those but need to check the shelf if thats what you are talking about.
John