Just picked up an SR 1911, 5" with about 150 rds through it for a touch under $500.00. I'm thinking a great deal from an older club shooter who simply can't shoot it anymore. Now..the manual and website say it takes all 'standard 1911' after market parts. So trigger first or do most of you like it as is? This will most likely be a range gun/house gun. I carry a PM45 Kahr for CCW work. Thoughts appreciated.