Hopefully someone out there can help me out... I'm wanting to be able to switch back and forth between .40S&W and 10mm on my Kimber Stainless (Series 1) .40S&W. I know I need a new ramped barrel, recoil spring and mags. Does anyone have specific recommendations for barrel (how is Ed Brown?), recoil spring (Wolf 20#?) and mags (Metalform 10mm 8 or 9 rounds or CMC)? Also, do I need to have a gunsmith fit the barrel or is this something I could do myself? Specific item brands and numbers would be appreciated. Thanks again for your help!