The Chinese LW hoes are the cheapest ones out there. I have yet
to see or try one, but I would like to.
You have to be especially careful with relief pressure settings when
running a PTO pump, as the pump usually does not have its own
relief. I think all hoe buyers (esp PTO pump users) should get a
3000psi guage ($10) and test their pressures. The factory may not
test them. If set too high, you can bend cylinders. Any well-built
hoe should be able to handle 2500psi. IMO. If using tractor hydraulics,
the tractor's system relief valve protects you. Often new hoes of
any brand have the reliefs set too low and your hoe is weak as a
result.
As for where to place your guage, you do not need to get a "T"
adapter. You can just remove a hose and stick the guage on the
end and operate that circuit.