Aren't the clips on the bottom just siting clips, to make sure the grill is properly alligned- and its the ones across the top that actually 'clip' into place and keep the thing on. If this is the case, surely you can just make make up some clips for the bottom and just superglue them in place- as long as they sit properly in the lug holes, then if the clips go in properly across the top it should be fine.
