how much revenue are you forfeiting during those 3 months?

Is that $ worth losing sleep over?

If yes, then follow through with plans to isolate your rig and fireproof as best as possible, add the ability to remote in via phone, check your pools stats to see the last time your rig sent a hash, have IP cams so you can check in visually, etc.

If the $ is not worth it, then sell the GPUs & enjoy your trip abroad