Ok, this appears to need some clarification.
1. In the CICTR you either have to be SVFR or IFR. If SVFR you need 10K's vis clear of cloud and in sight of the surface or if SVFR and have an IMCr then 3K's vis. clear of cloud and in sight of the surface.
2. The IMCr is accepted within the Channel Islands Zone regardless of the fact it lies mostly in the French FIR.
3. If you are VFR/SVFR vectors for the ILS would not be given unless requested (preferably at an early stage to arrange traffic order). Vectors will be accommodated but if SVFR you will be at the back of the queue unless otherwise convenient for the controller.
4. Controllers are not responsible for ensuring compliance with your own license conditions. However they do have a duty of care and if an approach looks dubiously unstable and/or dangerous, you may well get reported to the appropriate authorities.
5. The reason for the Class A airspace goes way back to after WWII when it was special rules airspace and before the heyday of the 70's and 80's when Jersey rivaled Gatwick as the busier airfield.