Is my phone repairable?

My iPhone 5C is one I've had since about late June. A couple of weeks ago (I don't remember when specifically) it accidentally got submerged in water and I left it in a bag of rice overnight, woke up and powered it on and it seemed to work good as new. About two days ago though, it fell and now one of the LCD connector pins is loose, so I have translucent white lines on the entire right half of the screen and that side won't respond to touch. Obviously I took it in and the guys at my local electronics repair shop told me that if the internal hardware has suffered any corrosion, it can't be fixed and by them taking the phone apart if that were to be the case, it would never turn on again. I have backed up photos as long recently as September in my iCloud, more over through January in shared albums, but I'm worried I'll lose everything. Please if someone could help I'd appreciate it.