Paint doesn't match the screen-used one (below), so I guess this was just reproduced for the roadshow.
Tali is also 100% right about the holes in the side - they were for the armature rig.
The paint varies on the screen used prop vehicle quite a bit (eg. the top side of the rockets behind the maroon stripe is orange-brown in some pics and grey in others like the pic you posted.)
My guess is they redid the paint a bit for shows because it was a real vehicle driven over desert and transported to Tunisia so would have been beat to hell once they were done.
It is the "real" landspeeder, just with different paint and some modifications done over time for various reasons. The underlying key paint marks are identical to the one photographed in 1976 seen in the Art of SW book, but it looks like the original black weathering wore off and they put a new coat on.