JR, 2.5 cents worth from an old guy that has owned, shot, chronographed, and reloaded for the Super since the '70s. I have owned Colt Combat Commander, '70 Series Colt Government, Colt Bright Stainless, Colt Special Combat Government, Kimber Target II and a STI Trojan in .38 Super. The Super can be loaded to such a wide range of velocities and engergies, with bullet weights commonly between 90 and 147 grains, I'd definitely recommend a full-sized pistol with 5" barrel and adjustable sights for recreational use. The two Supers I have enjoyed owning the most, and thought were the best value for the money, were the Kimber Target II and the STI Trojan. The earlier, '70 Series and prior, Colts had the barrels that attempted, unsuccessfully, to headspace the cartridge on the semi-rim. Non-existent accuracy, flattened and pierced primers with even the mildest factory ammo. Just terrible! Current Colt Governments have the little fixed factory sights, unless you go with the Custom Shop SCG with Bo-Mar type sights. My SCG was a nice looking gun, but relatively expensive and did not display any more precise fitting of slide/barrel/frame or better accuracy than the average production Government Model. I suspect you might have to look for a while to find an SCG for $1500.00. The kimber Target II was just excellent; reasonable price, Bo-Mar type sights, good trigger,very good fit and finish, accurate, totally reliable with any factory or reloaded ammo I shot in it. My current STI .38 Super has those same qualities, together with an even more precise fit of barrel/slide/frame and excellent out of the box trigger pull. Within my humble experience, a very nice Super can be obtained for quite a bit less than $1500.00...ymmv
BTW, just having a new barrel fitted and some tuning will not work in converting your current gun to .38 Super. It requires quite a bit more than just a barrel change and some tuning...