well, the bare minimum shipping flat rate would be 25 total both ways in a med flat rate, if you could build something strong enough to protect the terminals, like sheet-metal, lol. it's almost the exact size of the med flat tare box. otherwise, there is also the large flat rate game board box that ships for about $15 each way. there is a chance that the parts are going to run 25-50, possibly more or less. then there is the labor time, which could be an hour, or could be over5. the amp is worth 100-150imho, depending on condition, even less if it's pretty bad. i cannot say one way or the other if it would be worth paying to have it fixed, because you could get lucky, or end up upside-down on it, but will likely end up breaking even....