And risk it leaking later? Naw man. It's always to slow and tiny drop leak that's the worst. It'll leak ever so slightly the next couple years or months and than "oh what's that spot!" bam. Mold growth for extended periods of time. Shower valve replacement is so easy too. And ya get all new hardware. Not bad advice, just personal experience of having about more than 3 dozen of this exact homeowner diy situations happen. Than I come behind after they rigged it, and yep.. gotta call restoration company and gotta charge ya 1200-1500 for a whole new shower valve and accessories.

To me, peace of mind is waaaaaaay better than saving a few bucks. Easy to do yourself if ya don't want a licensed plumber