Would it be worthwhile to buy the firing pin, fp spring, firing pin retainer pin, and 15 lb hammer spring they suggest at this point while keeping everything else stock. Also would I need a new firing pin block with the extended firing pin? I'm waiting to get her refinished, so I'd like to keep the wife somewhat happy by staying on a budget while I buy parts on the side. This will be the first handgun I upgrade since CZ's are still made compared to the S&W 4506-1, 3906, 5906, and 3913 I own. I would have to find a video showing how to remove the trigger and all, but from my initial cleaning seems easy enough to DIY if not I'm sure I could go in it blind and figure it out.