Yeah, I actually bought my 8mm spacers used. They are H&R. I got my 15mm spacers from www.Turnermotorsport.com. They have 5mm, 8mm, 15mm, 20mm, and 25mm. Here's the link to the page for spacers. The 4x100 ones are at the bottom. I'm not exactly sure if you need longer bolts with 5mm spacers, you might want to call and talk to someone about that. They guys are Turner are awesome.
http://www.turnermotorsport.com/html...0&subcat_id=93
http://www.turnermotorsport.com/html...0&subcat_id=93