Elevators and things
As an old hand with many hours on Twotters, and other "cable driven" types, my best advice is to use the trim a lot, to minimize loadings on elevator cables, rod ends etc, and pay careful attention to speeds for deployment of flaps, particularly full flap, (I think from memory not above 80 kts was my rule in the Otter) to avoid that unusual nose down attitude, tho the Otter has a very effective compensator tab through most of its normal range.
And yes, they can be flown on trims, once you are established in a good landing attitude/speed configuration. I think about half flap works best, giving a bit extra speed for trim responsiveness, and an attitude comfortably nose-up, so a flare is not required.
I have had an elevator failure, its not nice. Very pleased I was on the right side of V1.