Nice looking gun. The old Marlins are built much better than the new ones. Looks like you have the same Williams sights as I have on my Marlin. I need to get a smaller aperture for mine.
Good luck finding components. I was able to find 38-55 brass at Buffalo Arms, so maybe they'll have some 35 Remington.
I still think you should have used your Guide Gun

Bull, are you going to come shoot this game with us?