Transom saver for sure, then a substantial 2x4 block for a backing and matching bolt 1 1/2 in. Longer than original. Hopefully you finish your trip safely.
I've had the same experience, just target practice for me with an xbow. I just lost the desire to kill, I'd rather feed them.. LOL I have younger friends who still hunt and are generous with meat.
I'm not very knowledgeable regarding fire arms. I play a bit in leather and thought it was a holster that had a leather look. But after a quick google I see it's an attachment to the pistol for a more accurate shot at distance..