onthecorner

What about getting it done at a council depot? They aren't looking for work to add to your bill so you should get a fairer test.

https://www.barnwell.co.uk/bristol-branch-is-moving/ In a different life, many years ago, we used to use their Avonmouth depot for any unusual seals. They would make something if they didn't have it on the shelf.

Barnwells. According to their site, they'll even be in Clevedon by the end of January

2 ton Tasker. Used by RAOC/RLC types amongst others. Almost impossible to reverse!

82-30B

Maybe from something like an asphalt/tarmac batching plant. Easier, quicker and cheaper to just replace worn out tips of the mixer paddles

https://www.ebay.co.uk/itm/LEYLAND-DIESEL-RECOVERY-VEHICLE/173657502379?_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D20140328180637%26meid%3D506c88459cc24ceaa80643fb18fd0118%26pid%3D100009%26rk%3D1%26rkt%3D2%26sd%3D253990565016%26itm%3D173657502379&_trksid=p2047675.c100009.m1982

I'm pretty sure Burnett & Hillman still supply Pirtek with adaptors.

Pirtek

Ours was under the old Severn Bridge. We used a Fiat Allis FL5B and a Hamm DV8. Luckily we all passed before NAAFI break

Dry sump?

Was part of the CES for Foden Wreckers. (Supposed to be) used by recce mechs when winching at night. Search ebay for Bardic Lamp Battery Conversion Kit

Some kind of liquid going through two "filters" before hitting some litmus type paper at the bottom?

Would it be better if the photo is rotated 90 degrees to the left, ie vertical? Could it then be measuring something falling?

Fixed it for you