Hey model look good,
It looks like an old 1 ton roller which are still pretty common today you see them a lot still used for paving small jobs like driveways and such.
The first thing that jumps out to me is the lack of operator controls most of these rollers had steering wheels and a lever for forward-backwards control but a few had stick controls for steering also.
I would just mount the caution light on the ROPS.
She does look like a sweet little roller just thought i would give you a couple suggestions.