Well, the guru, electric knife and phone charger will work fine on an inverter. The rest of the items require, at a minimum, a 3,000 watt generator, especially when the compressor of the ac kicks in. You will probably run into trouble with both the ac and ref on at the same time if both compressors start. You would probably need a 4kw which has a surge capacity of 4.4kw.
Go on line and look at the amp draw or each of the items you have listed, they are available with a google search or on the attached name plate of the unit. Add up the amp draw of all the items during the start phase. Use the formula Amps x Volts = watts: ie. 1 amp * 110 volts = 110 watts. This will give you an idea of the power requirement.
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