Would the Springer Mil Spec .45 be a good platform for a starter .45? What I mean is, would I be able to competently make upgrades (grips, sights, triggers, etc.) to the Mil Spec as time passes and funds allow to make it worth buying as a foundation, or would any modifications require so many mods that I may as well buy a whole different model. The Parkerized Mil Spec, new for sub-$600, is very attractive to me. I would glady sell my BE, magazines & 9mm ammo to subsidize the purchase. I could save enough by Christmas to make up the difference and have myself a new friend by New Years. But if I'd just have to sell it again to get a quality .45 at some unknown point in the future, then it wouldn't be worth it to me. Input?