So, I ran across this gun at a local shop today. Colt MKIV in 38 Super. I picked it up for $650 OTD, With a 1/2 dozen mags. It needs a few upgrades. I’m trying to decide if I want to go to a full house custom or do just a few minor upgrades like sights, beaver tail and trigger. Included original box and documents. Any thoughts? This is my 1st 38 Super.