Wheel question for newbie

[BBBurban at aol.com]

I just got a wicked good deal on a set of PCW's with 205/50/15.  The problem 
is that the stock Audi lug bolts use a ball seat, and these use a strait 
wedge type seat.  I know there is a kit to replace the bolts with studs and 
nuts but I would rather stay with bolts.... The only shop around here that 
can help me wants $85 dollars for a set of the wedge type bolts (of course 
the kit they want something like $125 for)... Does any one know where I can 
order some bolts and failing that maybe the kit cheap?  Also has anyone taken 
stock wheel bolts and machined them down to have the wedge shape 
successfully?  Would try it but not sure there is enough material for that.  
Oh yea. I would also need some additional length to make up for the thicker 
rim.  Mark Chang told me check with Javad.  Any ideas if you are reading this 
Javad?  
 Thanks all....

Hank  1990 Audi 90q20v