most of the younger shooters are using a CR Speed belt, but you said you dislike velcro.... most competition gun belts are very stiff (much stiffer than your Instructor belt), and have an inner and outer system, with the inner belt worn in the normal position (using velcro without buckle) and has a strip of "loop" velcro around its circumference, the outer belt has holster and mag pouches attached and has a section of "hook" velcro so it is easy to attach and remove the holster... some makers like Blackhawk have the hook on the inner belt, but is pretty aggressive on your cars cloth upholstery... I use an Uncle Mikes inner belt for daily wear as my motorcycle sets tall, and I have to move on to the tank to get on, and I don't want to scratch it
my outer gun belt is a 2inch wide Uncle Mikes with plastic snap buckles like your request... the attaching ends fold under and are connected by velcro....you should be able to find something similar in 1 1/2 inch belt in a police supply
my "formal" belt is a Milt Sparks fancy stitched belt