Freelander 1 maf torx bit and other parts

while servicing and sorting out my freelander some of the little plastic bits broke I am thinking of the little yellow screw plug that holds the plastic part (the part the egr bolts on to) sorry don't know the name of it also the plastic studs the hold the inner wing liners in place and lastly does any one have a link to a maf sensor torx bit ? thank you

Wheel arch liner clips are 20 for £4 on ebay.
5 point Torx security bit sets under a tenner.
I think the yellow thing you mean is on a bracket fitted to the top engine mount, but I haven't found a part number for it yet.