I did the conversion also-still got stock BMC which is 16/17,I need the 1 1/16 that the Zx came out with.
Pedal feel is good with SS lines-stock lines won't work.
Front rotors is very difficult to find if you not going bigger than S14 .
a set of floating rotors will be about 6K plus 1.5 K for the offset bracket
if you can't do it yourself.
I have a set of front calipers available-3K.
Rebuild kits also-R450
the rears is already sold -but can sourch some if you need.
If you add up the conversion it will be
Calipers 5K
rotors 4K
SS lines 1.5K
Yellow stuff 2.5K
Ate racing brake fluid-R300
Rebuild kits R900
Respray calipers -R500
ZX BMC- R1500.
So it will quickly add up to a set of wilwood calipers and rotors in my opinion.
It is totally worth it when you feel the difference though in stopping power compared to stock,and looks ofcourse.