Grand Cherokee has amber rear turn signals and white fronts.. but might have amber bulbs in front. No rear fog light, but might be able to put one in.
If you get an MoT inspector who is picky about the lights, you'll hit a Catch-22 with the clear lenses. Put a clear bulb in and you'll get white parking lights, but then you don't have amber front turn signals, also specified for all new cars here from 1965 onward. Keep the original amber bulb and the signals will be fine but the inspector could object to the amber parking lights!
If you can't find a "good" MoT inspector who will pass it with amber parking lights, I would suggest the following as the easiest solution to meet with the strict interpretation of the rules and minimize changes to the vehicle.
You'll need to change the headlights for driving on the left anyway, so get the type which are used on many cars over here which incorporate a small parking-light bulb within the headlight itself. Then just splice these extra lights into the existing front parking-light circuit and you'll have the white lights the inspector will/might insist upon. There's no need to disconnect the existing amber lights, since there's nothing to say you can't have them as well.
The rear fog light (if you can't avoid it) can be handled with one of those bracket-mount types which can easily be fitted underneath the rear bumper and wired through to a switch on the dash. If you fit two rear fogs they should be a matched, symmetrically placed pair; if you fit just the one then it should be to the right of the vehicle's centerline.
Can I drive her from dock home and to MOT if she is insured in UK?
Was reading here: http://www.direct.gov.uk/en/Motoring/BuyingAndSellingAVehicle/ImportingAndExportingAVehicle/DG_10014623
I'm getting into less familiar territory now, but I think that section is only covering
temporary imports. If moving here, you'd been under the rules for a permanent import, which can and do change sometimes:
http://www.direct.gov.uk/en/Motoring/BuyingAndSellingAVehicle/ImportingAndExportingAVehicle/DG_4022583Someone who has done this recently and can offer more practical advice will probably be along soon.