Nice mod!
I have a quick hitch for the 3pt on my Yanmar. I have a love-hate relationship with it. With the implements it works well with (box blade, rotary cutter), it shortens changeover time substantially. For implements that have troublesome dimensions, it winds up being a series of compromises.
To make matters worse, when I added the LS to the stable, I didn't want a second quick hitch, because the LS has a backhoe, and the quick hitch would have to come off to mount the backhoe. With the LS, it has a very easy to release/adjust the lifting arm swing limiter, which makes attaching implements far faster. At this point, I've left a couple of implements set up for the quick hitch, and I use those just with the Yanmar. I may eventually replace the Yanmar with another, older tractor with more weight and horsepower, and if I do that, I'll probably let the quick hitch go with the Yanmar.
If I was going to do it all over again, I'd probably skip the quick hitch.
Mine is mainly for the mower. The first time I hooked it up, it did me in.