I wouldn't notch the trim. But that's me. Odds of me goofing up are high. Maybe your more handy than me?
I was really surprised what a 8 inch scrape on my lower trim added up to. (Thanks to some ones kid cutting through campsite with a bicycle).
The lower trim from my manufacture, they would only sell 12 foot piece and unpainted. The length (12 foot) is to big for UPS so I would of had to use regular freight truck. So high shipping rates plus $75.00 manufacture "crating fee" to ship it in. So a little tiny scratch became quickly $700.00 when painted. I'm still wondering how a little metal piece gets to cost so much and I'm obviously still looking for perfect decal to cover scratch.
How high does your RV sit?
When I was in the process of looking for the "perfect" place to mount mine I noticed my driveway striker or those metal triangle things at rear haven't dragged bottom yet or made contact with anything. I put tube inside of them and two 1/8 inch bolts just as temp mounting just to see how tube would work out. Only one season so far , but quickly becoming permanent mounting. I painted it black and looks like RV was designed with it. Not a show piece but very functional.
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