engine out

Where is the oil ? There ain't many places it can come from

what actually leaking engine oil, tranny oil, clutch fluid etc !
If coming out bell housing area could be crank seal or gearbox input seal if unlucky
sump is another for interesting leaks, if can't see much oil trail externally I would look into bellhousing via fork boot and see if signs of oil thrown about .  
If take time it no bother remove and refit an engine but care is needed plus possible repairs for previous bodges and age related hassles you encounter, most horror stories are combination of the people doing it and possibly totally bodged car to start with ...
If doing water hoses get genuine nissan (about same price) as they last 20 to 30 years, fit like a glove and don't leak unlike silicone kits that fit poor and don't last long .

As Johnny says........Where abouts is the oil dripping?

It could be coming from higher up and running down, other common oil leaks (not mentioned) are:
Chain tensioner (rear left of engine)
Oil filter / housing
Front main oil seal
Oil pressure sensor (on cooler housing)
Turbo lines to block (above alternator)
Turbo (big) oil return pipe

I will take a guess that if clutch has been recently changed then they have not sealed the mating faces around oil seals from transfer to gearbox and its coming out the weephole where they both join.

Also to my knowledge Exedy do not make a 4 puk paddle clutch, they do a 3 puk and a 6 puk as well as basket type clutches

They do make a 4 punk clutch as I've got one lol, it might be a new line they do bob

Oh shit not exedy helix I meant sorry ignore me lol

Ive gone off the Helix clutches tbh after my last one did this

If mine does that I will be taking the fucker to their hq! As that where I got mine from lol

They have taken mine and put it in on display in their reception.
Not sure why but thats what I was told....

guys the leak was coming from the plunger by the timing chain. sealed it back up and its stopped. so happy days. no engine out just drooped the drive shaft. so sorted that and now the alternator is making a horrid sound as the bearing is seized so new one required. hey ho 1 thing at a time

Yes keep going mate and remember what I said don't leave them sitting un loved  a good run up to temp and out  and about every 10 days as if they sit they don't like you for leaving them ( like women they need attention and reassured) and show you that by failing or develop problems that were not there when you parked them up