Mercedes Axor 1823

Considering purchasing a secondhand axor 1823 rigid with 400,000 miles on the clock is this excessive for one of these or is it the norm? One owner some service history with it.Any thoughts would be appreciated cheers.

I’ve seen a few with worn 2nd/3rd synchros, take it out and get the gearbox warm and go through each gear you’ll soon feel it. Also go through the dash and see if there are any current faults, and check all the dash works, I’ve seen a few fail.