Some updates, the weekend hasn't been as good as it should.
I did transfer and diffs, I had to get a breaking bar but no further issues than that.
The point came when I began on gearbox, checking the fill plug I tried with T55 and nothing, then I went for the T50 and nothing either, I took a closer look and I noticed the plug was complete stripped
so I'm going to take the car to a garage in order to sort it as I reckon I won't be able to loosen it.
Apart from that I was planning to tight the oil pump nut and checking what I received I noticed that I ordered the wrong sump gasket so still on hold.
It's a good thing I could change the fuel filter buuuuuut now every time I switch the ignition there is a long electronic sound coming from filter and if I start the car the water sensor flashes on dashboard although only for a couple of seconds, weird.
I'll make another order and I was planning to include the auxiliary belt and tensioner and the fuel pressure regulator, are this jobs difficult to do? If they are I could ask a quote at the same time as the gearbox oil change.
So in summary a total disaster