Defender Alternator ADVICE needed

Good evening to all.

I want to upgrade my 110 DEFENDER 300 TDI 1997 MY 65 Amp Alternator with an 100 Amp Alternator from the Discovery 300 TDI.
Is YLE10113G is appropriate for this?
Is it necessary something additional to be done in order to mount it or does it fit to the original manifacturers mounting points of the 300 TDI engine as my original alternator?

Except for the 2 Defender headlights H4 - 60/55W I have also 4 additional headlights H3 - 55W.
Will I be able with this 100 Amp alternator to use simultaneously (on the same time) all 6 headlights together with taillights, sidelights, heater fan, radiator cooler fan, rear end door heated glass and will the alternator be able to supply enough current to all of them for a long time while driving?

Which brand YLE10113G is better in terms of quality, durability and reliability - HELLA or DENSO ?
What is your experience with both brands?

Every answer is welcomed.

I cant remember exactly what but I think theres some difference between some 300 defender alternators
I know the later disco 300 ones were 100 amp and they had a smaller alt pulley.

TBH with all your loads on I think most alternators will handle that, they wont be happy but lets be honest its not all going to be on at the the same time for any length of time, be interesting to see what the volts are with all the kit running.