Possible? This is America, everything is possible.
Adviseable? Meh, that's open to opinion.
Before I got my 24, the dealer had a High Country they wanted to get rid of. It didn't have the multi-flex tailgate which was a no-go for me. They asked me, if they switch the tailgate would I buy? After they researched, I was told the wiring harness and at least one BCM from the factory will not recognize the change.
Thats not to say it can't or won't work. But it's not a plug and play project.