Laughing out loud. SKS mudguards are designed for OEM fitting, and resetting, if ever necessary, by a mechanic who knows what he's doing. On my 60mm Big Apple Liteskins, there's nowhere more than 5mm of clearance between the SKS P65s and the tyre.
Since I'm several countries and two seas away from the makers of my bike and their factory-trained techs, I've found that adjustment is made easier by a logical process, which starts with washers added or subtracted to set the attachment to the crossbar near the bottom bracket just right, and getting the height of the mudguard at fork crown attachment absolutely correct with every other part of it loose, and then treating the stainless streel struts like spokes in a wheel to be progressively adjusted, a very little bit at a time. On my Utopia there was an additional custom bracket at the back that fixed to Tubus made ali rack, but both the rack and the bracket are long gone (good riddance!). I used an 8mm nutsetter in a stubby, thick ratchet-screwdriver designed for handicapped people to shortcut some of the frustration. I also have a very short (two-finger operation so you don't twist off small fasteners) right-angle ratchet driver for standard screwdriver bits that will take the same nutsetter, and that works well too; it's made by Faithful and sold with a box of bits, and I saw it at the hardware store quite recently, so it's still made.
My first adjustment held for seven years, and when necessary I adjusted the chain just so, sliding the whole wheel only a fraction of a millimetre in the sliders (a problem Thorn Rohloff riders don't have because they have an EBB) to avoid having to adjust the mudguard. So I know how you feel.
