There were are a bunch of M109 Rochev pics in the Op Iron Swords thread.
I think you are confusing the two types though. The M109 Doher is a later/updated version than the Rochev. Both types are still in use though, Rochevs with reserve units and Dohers with active units.
The Doher is updated with these external visual differences:
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Two sub machine guns on the Doher’s turret, only one in the Rochev. The additional SMG is positioned near the sight ballistic shield.
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Electrical travel lock (known in Hebrew as “BiFoot”) – in the Rochev one of the crewmen has to lock manually the barrel, most of the time the driver, with the assistance of the sight operator. In the Doher the crewmen can do it automatically, by electrical operation. The Doher’s travel lock is thicker than the Rochev’s, and has a rectangle box in its front side.
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External Generator – the Doher is equipped with an external generator, positioned instead of the right-back basket and its two external cells. Due to the lack of one basket, the left basket is a bit bigger (to contain the camouflage cover).
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Different shape of the commander’s turret – the Doher’s NCO turret can be locked in slit position, a position that does not exist in the Rochev.