My 2001 td5 110 has or had exactly the same issues as yours (and more), and I have been working my way though them, on the basis that at the end of it, I'll have a vehicle that I know inside and out, along with which I know the history of a large percentage of it. The truck had done 148k when I got it, and in just under 2 years is now at just over 160k miles.
So far, I have replaced the DMF, cluctch, gearbox (and transferbox, as it was bolted to the gearbox), propshafts, rear axle (too much wear in the diff - decided to replace the entire axle, and rebuild with all new bearings and gaskets), springs and shocks, fuel pump and fuel pressure regulator.
I have also replaced the rear cross member, which wasn't as bad a job as I expected.
I have rebuilt one swivel with a new chrome ball, and the otherside will also be done soon, along with a replacement front diff.
The turbo is not happy, and a replacement has been sourced, so will get done shortly. The headgasket and dowels will also get done at the same time I suspect.
I have also done a fair bit of tidying up the interior and other cosmetic bits - a comeplete set of 4 doors is in the cards too. my philosophy is that a tatty looking truck is generally less likley to attract the wrong attention, and would not inhibit me using it for what it is designed for - laning in a shiney truck always leads to tears!
Most of this has been done by using decent 2nd hand parts and/or refurbing stuff myself - the doors will be repaired and reskinned rather than buying new.
My point is that none of the stuff you mention is that difficult to do, and whilst it will require some pennies, intelligent sourcing and a bit of patience can see this significantly reduced...