what oil should be filled in JCB 3CX

We often face such a problem as to which oil should be poured into a JCB excavator!!!
Can anyone provide oil and filter replacements for the JCB 3cx ECO 2010 Contractor Excavator
The original is very expensive, but you want to save money...
I list the original:
1. Gearbox oil JCB EP 10W Transmission fluid,
2. JCB HP 15 Hydraulic Fluid Din 51524
3. Oil for the rear axle JCB Gear Oil HP Plus-wet brakes
4. JCB Hydraulic Fluid 46 hydraulic oil
5. Engine oil JCB SAE 15w40, ACEA E5, B3, A3, API CH-4 / SG
From my own experience, I can say that only the original can be better than the original)))
But I will certainly share what I myself used in the technique, and I will say that I also spent a lot of time on the Internet for information so as not to make a mistake in my choice
Substitutes
1. FUCHS TITAN UTTO TO-4 10W SAE30 for gearboxes and bridges
2. FUCHS TITAN 80W-90 - for older models
3. SwdRheinol Synkrol 5 80W-90 • API GL -5-for bridges of older models
4. MANNOL SAE10W TO-2 for gearbox
5. SWD RHEINOL 15W-40