I have an antidote for such terrain types. I do a little gardening and then peg out a couple of poly tarps to give me a runway which gives a reasonable surface to land on UNLESS the rocks are actually boulders!
When you are able to land with landing gear properly there is NO MORE damage to your planes, (except for the odd bit of hangar rash). Not needing to rebuild, repair, replace is a real boost and gives you the freedom to expand your hangar to ridiculous levels

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Have fun!