For jungle Kled, have you tried going 12-0-18 with ferocity going (down the tiers) left, mid, left, left? and with resolve going (down the tiers) left, right, right, left, right, mid (strength of ages)? It gives you early health, sustain, and gives you stacks.
starting items, maybe go hunter's talsman for the life drain with health pots. Also try to keep skaarls health up by maybe taking skuttle before red buff (go red first). for build path, try warrior or cinderhulk (challenging smite), timat (build later into titanic), then go black cleaver.
I dont know too much about kled jungle, but they buffed the damage of his autos while dismounted so maybe that can pick his jungling back up. Also, like kled, DON'T GIVE UP! you can find a build! for me i like to go death's dance or black cleaver in top lane with a titanic hydra.