Chances are you are wise rather than mad - but make a few calls & compare prices like with like, model for model beforehand to make sure. NI isn't always cheaper.
I am buying a rangemaster (leckie one), an integrated dishwasher, an integrated fridge freezer. Got two quotes down here. (knew what brands and serial numbers). Rang two places in the north. Hardys came out at costing me E1k less. And deliver for E50. Less then the price of a trip up north. All done via phone and internet.