I have a 3 season vacation place, and despite my best efforts blowing out the pipes, I had a break this winter. I have a series of galvanized fittings connecting everything. On the bottom is a T, out of which on one end is the garden hose and on the other end is cpvc going to the hot water tank. Moving up, I have a pex line in from my holding tank. Moving up again, there is some old flexible rubber-like hose that goes to my cold water fixtures.

The cpvc is what broke. The threads are stuck in the galvanized T and I cannot extract them.

Would it be smarter to try to take this apart, or should I just cut the pex and rubber-like pipes, remove the garden hose, and reconnect with new fittings? If the second option is the right one, what type of fittings should I use?