Stressful as it will be I think you've made the right call. Once your house is sold in the money's in the bank you'll have more power to your elbow and can throw your toys out the pram a bit more effectively.
Make it clear to the EA that if anything else suitable comes up than that sake is lost too.
We had to move out to prevent our sale being lost when I was in my teens, I had to be taken out of school and my mum and I moved 150m up North to stay with relatives and my dad dossed in a colleagues flat for 6 weeks.
They did all this because they loved the house but when it came to the crunch and the vendors tried to move the completion date again my Dad walked into the EA and demanded to see all properties in a 30m radius that were empty and available for cash. The EA told him he couldn't do that, to which he pointed out he could, at this point, do whatever the hell he wanted.
It was then our vendors turn to move out and stick everything in storage to avoid losing their sale 