Welcome to the forum. Unfortunately I can't really help you with your problem, at least not directly. I have an observation from several decades of experience the engineering world. Back in the day when all we had was paper catalogs and telephones, that's what we used. You ended up developing relationships with commonly used vendors and manufacturers. You learned to count on manufacturers to help you figure out the best way to use their products. They're called Application Engineers. Its their job to help you solve your problem. I have noticed an interesting phenomenon as the internet and Google and forums like this one become the default "go-to" for today's young engineers. It seems to never cross their minds to actually call a live person at a manufacturer and ask them for help. If they don't see the information they want on a website, they search somewhere else. Call somebody. You didn't mention that you did that, but maybe you did. If so I apologize for my little rant. I can tell you this - there is a world of intelligence and experience on this forum but there is probably NO one on this site that could help you as much as a few phone calls directly to strain gage manufacturers' application engineers. Not their sales desk (order takers), their application engineers. Try that and see what you learn.