Hi, I’ve just moved to a new house with a built in Hotpoint fridge freezer. The model number is HSZ3021VL. The cabinet door is not fixed to the fridge door, which is a real pain. The only 2 holes in the fridge door are on the top and bottom corners. Browsing through your site it looks like that I need either this C00216946 or this C00217869. Can you advise please? Would I also need door sliders and if so which ones? Thank you in advance. Regards. Vadcha