I posted these up for someone about 4-6 weeks ago for a 2wd dipstick and dipstick tube, just do a search, it's not mega critical so long as it has enough, from empty 3.5 litres fills the sump and the shallow "tray" area to the front of the sump before the main flat bit, I filled one up in the week to find out.
3 litres filled the sump bowel itself and came to the top of the sump bowel area, so well above the baffle, in use some will remain at the top of the engine and in other parts, I'm just sticking 4 litres in, the in use level can be checked with a clear tube connected to the drain plug.
tabetha