My 444 has a Williams FP installed in the 70s, rock solid. It has the screw slot adjusters not the target knobs, my preference for hunting. Once sighted it is locked down solid. Theoretically the Skinner XS style is coarser on elevation adjustment due to the limit of a half turn on the peep shaft. However I've never heard a single complaint so not an issue.
I also have the simple Williams WGRS and find it ok on my 22. I wouldn't buy one for a hunting rifle that didn't have a thread guided adjustment system, not slide and tighten grub screws like the WGRS. My Lyman 66s are excellent as well. They have a push button peep slide removal system but I don't use this feature preferring sight in and forget sights. Older Lymans are steel and all mine are older ones. My aluminum Williams sights work perfectly but I have a baseless prejudice for steel gun parts so sought out the Lyman for my Winchesters.
Many Winchesters, Clones, and Marlins are drilled and tapped for side mount receiver sights. The Skinner/XS style mount with the rear scope mount holes on Marlins. Folks will scold you for drilling pre-64 Winchester 94s if needed. Mine was drilled and tapped after delivery, just fine with me.
Taller front sights have been almost always required, no big deal.
I like the looks of this Brockman sight but importing might be too much trouble. Brownells ships here I think. There is a matching front sight.
http://www.brownells.com/rifle-parts/sights/rear-sights/gen-iii-marlin-peep-sight-prod1803.aspx
You will be very happy with peep or aperture sights. An iron sighted lever is the perfect hand carry hunting rifle ever made imo. My personal limit is 150 paces but it was once 200 or better with younger eyes. I got accustomed to using the smallest OD screw in aperture insert drilled out as large as possible. If in tight cover I would screw it out and drop it in a pocket using the threaded hole, folks call this a ghost ring today. Folks say the eye naturally centers itself in the large peep, seems to work for me. However I have a collection of inserts so sight in and load test with a medium size aperture. If it helps it isn't much.
Another option is the tang sight. I was once tempted to try one but gave my head a shake. Definitely worth researching but give me a side mounted receiver sight for rugged use. If I was younger and in the market the Brockman mounted on a Marlin would sure turn my head.