Frustration

I came up with a rather jolly 12 string guitar part last night. After practicing for a while, I decided to go for a take. Played it, recorded it, and halfway through *BUUUURRRRP* goes the PC. Same thing again next time. And the time after. After two hours of fiddling and faffing, the burpiness seemed to go away. I started recording again, got one minute into the piece, and guess what? I broke a string. At this point it was too late to do anything about it, as I have to get up quite early for work. Very frustrating.

Here's a question for all you musos. Should I spend two hours completely re-stringing the 12 string, or simply replace the broken G? I know I should replace the lot, but it's so time consuming!