Is it worth it to upgrade to rubber A arm bushings? (69 C10)

[Zenwren]

I'm considering rebuilding the front suspension of my daily driver 1969 C10. I have been getting a bit of a banging sound on rough roads and suspect it's my control arm bushings. Would it be worth it to swap the cross member and suspension with one from a later truck to get the rubber bushings and better part availability? I currently have drums and stock height. I don't care much either way about drums vs disk or lowering it. I realize I'll have to switch to 5 lug wheels. I do a lot of gravel road driving and am hoping maybe it will improve the ride a little. I also like the idea of being able to clean/rebuild everything while still driving my truck so it's not out of service for too long! Is it worth the effort in the end or should I bite the bullet and just learn how to replace these goofy metal bushings?