In the 2nd photo you can see how the hub is sitting on the fork leg.
Yes I can see that mate ........ I've been doing some checking and measuring for you ....
The 735 mm forks on DHZ monster bikes and the forks on our DHZ 138 both are 48 mm thru the top and bottom clamps so Fast Ace legs will go straight into their triple clamps .......
The AS-02 clamps are 108 mm wide from inside of tube to inside of tube (156 mm centre to centre of fork tubes) and the DHZ Monster forks are 112 mm wide from inside of tube to inside of tube (160 mm centre to centre) .... so there is only 4 mm difference ...... The wheel & disc clears either side of the Monster forks but the disc bolt heads are close (about 2 mm) ... So you'd have to use countersunk head disc bolts or move the wheel centreline 2 mm to the right side ....... You could get 2 mm machined off the wheel hub to move the disc inwards ..... OR as you've probably already done .... buy wider spaced clamps .....
IF your triple clamps are narrower than 156 mm c to c then your forks are definitely made wrong .... The only other thing is that your front wheel could be wrong ..........
I bought one of my sets of AS-02's as a complete fork kit including the front wheel , a disc , assembled master cylinder , brake line and caliper set as supplied by Fast Ace .... The bare front wheel hub is 93 mm wide overall . It takes thru bolts and nuts for the disc and the caliper is only small and narrow to clear the spokes . The caliper is painted grey and has a steel mounting plate .......
Some sellers slap their own parts together to make up a fork kit and create one big stuff up .... because they haven't got a clue how to engineer anything other than building up their own bank account ....
Obviously , the left side spacer , type of caliper and its mounting position plus the wheel hub width all have to be precisely configured for things to work ...... Measure your parts and let us know what the measurements are .....
My front billet hub wheel has an overall hub width of 95 mm counting the disc adaptor width ... the spoke section is only 76 mm wide .... with the disc adaptor it's 86 mm ..... so maybe a billet hub front wheel would help solve your problems ..... of course tho' the right side of the AS-01 axle would need some of the 20 mm section machined back to centre up the billet hub or move it to the right a bit if necessary .....
Fitting billet hub wheels to standard pit bike forks and axles requires the spacers to be machined shorter anyway ...... eg ~ the cast hub wheel measures 76.5 mm from outside of bearing race to outside of bearing race and the billet hub wheel measures 87 mm from outside of bearing race to outside of bearing race so both of the stock wheel spacers would need to have 4.75 mm machined of them to maintain the stock fork leg centreline to centreline spacing and keep the wheel centred .......