Steps to reproduce the proposal
Find all sufficient assets. I used Apps UI, queries assets.asset and foreignAssets.asset and then searched for isSufficient: true.
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For each sufficient asset, generate an assets.forceAssetStatus call, keeping everything the same and only changing the minBalance. The encoded call is what you will pass to the Transact instruction on the Relay Chain.
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Get the weight info. You can use the runtime RPC transactionPaymentCallApi.queryCallInfo to get the weight. The requireWeightAtMost parameter in the Transact instruction must be greater than this.