would I agree to such terms. In my opinion when you order goods that have to be delivered to you by courier it's up to the supplier and/or the courier company to accept liability for safe delivery - not you.
Your part of the contract is to pay for the laptop - Rock's is to deliver it to you, and if they aren't prepared to accept responsibility for that they don't deserve your order. Why don't you call them and tell them they can have the order if they waive those conditions, see what they say? Rock make good machines, and sell a lot of them, I doubt it would be the first time they've faced this issue. Most people probably don't bother to read the terms.
As for insurance
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