hi
i have just gone through the process including new galv 2nd row doors from SPS ,some points which may help reduce messing about
SPS doors are slightly thicker than normal at hinge bolt point as the bolt housing tube protrudes more than on standard/oem doors as a result 55mm bolts dont work you need 60mm i had various stainless bolts inc allen screw and torx the fitment varies quite a bit - some seat well and deeply others the heads dont seat well again this affects bolt length, i suggest if going for stainless you get hinges/ bolts from same source so you have some come back otherwise hinge suppliers blame bolts and bolt suppliers say they fit all hinges they have tested! you are in the middle As pointed out the TD5 hinge profile is rounded, original/older hinges are more square so new gaskets - these are not cheap for what they are ( £2.70 approx ea) they are sided and front/2nd row are different as has been pointed out impact drivers etc will probably not shift all screws its easier quicker to cut them if replacing hinges