found these pics online..


this bracket isn't necessary, just get a longer bolt and mount it in reverse:

and you need to do quite a few things to get the front st205 calipers to fit...
a) longer wheel studs
b) longer brake line
c) shave off 1mm off the caliper mounting locations to bring them out forward (so the disc will clear the bottom ball joint)
d) the disc itself will need a 4mm spacer to center itself with the caliper
e) the discs will need to be machined down to atleast 297mm in diameter
f) longer caliper mounting bolts
for the rears, it should be a direct swap using st205 caliper, discs, and pads.
these are the steps i found that were used on fitting the st205 brakes on an st185.
more info here:
link 1link 2