hmmm question about wheel spacers with my setup

[crazy seaman]

hey- currently im running a set of Drag dr 2's on a 1.5inch drop (not my favorite rim, but was given to me for free new)

http://www.machiii.net/wheels/Drag/DR-6.htm

they are 17x7 with a low profile tire, and im not a fan of how they sit; I want something that sticks out closer to the fender, but doesnt rub. From what i read I was thinking about going with 15mm spacer in the rear and maybe 10mm for the front.

now my questions are.
Where can i find a decent cheap spacer?
will 15mm rub?
what happens with the hub centric ring when used with a spacer?

sorry for such noob questions. im actually not a noob when it comes to cars, just when it comes to suspension upgrades. thanks an advance

[daniel]

since the offset is +40 you could run a 15mm spacer on all 4 corners and still have a bit of room to spare. you should probably try to find a hubcentric spacer, but if you cant i am guessing that a spacer with the correct 57.1mm centerbore can be mated safely with a hubcentric ring.