How do you know it's time to give in on your truck

[dagwood]

i have a 72 c-10 with a 6 cylinder engine and 4 speed manual transmission. this truck is in horrible condition, from lack of proper maintenance over the last 10 years which included being abandoned by a previous owner after a attempt was made to make some kind of rat rod. Basically what is not broke is rusted. i got new doors and fenders for it. Have a chance to get new cab corners roof panel and drip rail to replace the rusted ones. So far, i been able to keep the cost of repairs low. But it seems like when one thing gets fixed something else breaks. i've thought about giving up on it. But what stops me is mainly 2 things. i've always wanted a 72 chevy truck. The second, is knowing that no matter how bad this truck is. i really can't make it worse. but at the same time, i know it may never been road worthy. May i ask what would you do?