Hi,
I measured the dipstick tube from my 2wd today for you.
Outer diameter 10.3mm
Inside diameter 8.15mm
Length 265mm
Markings, measured from the "collar", that is on the dipstick itself and plugs into the tube when inserted fully, minimum mark 405mm, maximum mark 384mm
Hope this helps, the tube is no problem, the inner diameter isn't super critical, so long as dipstick passes through, the outer I could easily lathe down from a 10.5mm or 11mm for you if wanted.
tabetha