Help getting xcRMRK off Trust Waller

Posted to the moonbeam sub with no luck. I need help getting xcRMRK off Trust Wallet... and off moonriver.

I am am American who had RMRK on kucoin and needed to clear coins off the exchange because we can't use kucoin anymore due to kyc.

The cheap option to get off kucoin was to transfer on the moonriver network onto my trust waller. I did not realize that Trust doesn't actually support moonriver beyond recording that I have the coins.

I have a metamask and a coinbase wallet. I can not figure out how to the xcRMRK onto something like the ARB or OP network. The bridges I know of don't seem to support moonriver...

I'm a n00b at dex/swaps/etc. I really have only ever bought off CEXs... something approaching impossible these days and thrusting me I to the deep end. Things had been going smoothly u til this snag. Any help would be beyond appreciated.

TIA