I don't know about jumps, but I've seen a few guys ride this stretch on rigid 29ers:
(one guy was on a carbon forked Inbred, one on a carbon forked Salsa (Selma?), one... I think it was an all steel Karate Monkey.
Gearing definitely depends on you and your trails. Can you experiment on a geared bike, to see what is doable?

(one guy was on a carbon forked Inbred, one on a carbon forked Salsa (Selma?), one... I think it was an all steel Karate Monkey.
Gearing definitely depends on you and your trails. Can you experiment on a geared bike, to see what is doable?