I have a Hi Power Practical that started out like like the
one Sweeper22 posted that I bought in '94 and sent to Wayne Novak to have some custom work done to in '95.
I am a 1911 guy and have many but really love that Hi Power.
If you plan to carry your Hi Power, you will see a lot of 1911 holsters listed as also fitting the Hi Power, and they do. Sort of.
I was carrying mine in a Milt Sparks Summer special 1911 holster (a top quality holster) and I found that the Hi Po would walk around in the holster a bit. I would find the safety flicked off (fire position) now and then which was unsettling. The gun was still safe in the holster, but it shouldn't happen. Whether it was from movement in the holster or from the weak side safety being bumped, I'm not sure. I think it was a combination.
I would highly recommend a holster custom made for a Hi Power. Most of the good holster makers will make one.
The one I have is an Incognito from Garrity http://www.garritysgunleather.com/IWBHolsters.htm
What I really like about it is that it is boned (molded) around the safeties which holds them in place. The strong side safety is fully molded in, and the leather comes up high enough to cover the tip of the weak side (outer) lever which keeps it from being swept off when bumping the steering wheel or a tight squeeze through a door frame etc.
I finally feel confident in carrying the Hi Power and have it in very regular rotation these days. The safety has yet to disengage while in the holster, and the Incognito holds the gun very close to the body and is very secure.
Back in the late 80's I had a Baretta 92, and if I didn't hate it, I at least really disliked it, but it's personal preference.
You might also want to experiment with some different grips on your Hi Power, but that to is personal.
Nice find there too BTW ! Nice looking example.