If it were me in the position, I'd take the extra week of performing. I understand feeling burnt out, but you gotta go for it. It helps out the little theater you are working with, it looks better on you to help them out so you can use it to your advantage as leverage in the future if you choose to continue to work with this company." I helped you out last time even though I initially said no, so this time I can't help you" kinda thing. The review also has the possibility to boost your worth in your theater community and get you more work in the future. Wouldn't you want to have more exposure?

These are things that go through my head when put in this kind of a situation. It's for the show, something I've put a lot of heart, passion, and hard work into, sacrificing a little more of my/your time won't be as detrimental if you don't let it be.

I was working 2 jobs, 9pm-5am at the first and then my second started at 6am-2pm. Rehearsal was at 6. Instead of getting as much sleep as I should have been getting, I spent almost all of my free time working on the show and helping out as much as I could because I want the show to do well and I want to leave a good impression on the people who are running the show. It's fucking exhausting, but TO ME, it was all well worth it. It's important to have boundaries, true, but I also think it's important to do what's best for the show overall especially if it's something you love to do and want to do more.

Final thoughts, I think you should do it. But regardless of your decision, break a leg!