With a single cab, you can't utilise seat extension rails like a wagon can. The back wall of the cab limits your rearward travel.
For some like myself, a single cab is the ideal set-up, and I am ok with the legroom, but at 1.8m, not as tall as you.
Some time ago I measured the main cab dimensions to compare a 79 series cruiser to a single cab landie side by side and they were within a whisker identical except the base of the cruiser windscreen is further forward, and the smaller diameter steering wheel on the cruiser is a better size (on my list to change in the landie). The landie seats are far more comfortable, but the hand brake lever needs to be tilted a little away from the driver's left leg. The cruiser has a left foot rest, which is also on my list to fit to the landie.

