Replying to Drill size/depth problem for mounting

Hello NS,
I come in search of your help with a situation I have run across.

I just purchased the ON3P Filthy Riches and mounting instructions are to have a drill bit with the demensions of 3.6mm x 9mm.
Unfortunately, The tuning shop that's connected to the retail shop I work in does not have that bit. The only bits that have even part of the demensions that I need are:
3.5mm x 7.5mm
3.5mm x 10mm
4.1mm x 9mm
4.1mm x 9.5mm?

(I should add that I am mounting Rossignol FKS140's on them)

Now I understand that you want a slightly more snug size that what is recommended (3.6) but I'm wondering if I could use either 7.5mm or 10mm depth bit. The other shop that's local doesn't have the size I need either and I don't want to drive a few hours just to get them mounted in the shop I bought them from.

Have any of you guys run into this problem before? Is there anything I can do? Thanks in advance guys!

-DJ