See if it can be welded then leak test it. Make sure your system has no air in it when you refill it or you'll just burn it up.
"Well Dad i grabbed a fist full of the Go-Stick and, well, as you can see the sled is in that hole now."
There is no replacement for displacement.
"So you're a grown up? Do you drink a lot of coffee and smoke cigarettes? Cuz that's what my dad does."-My roommate