New Owner Queries & Parts

[Halkyon]

Hi!

As mentioned in this thread I've recently taken ownership of PBL 866L. I'm new to Volvos but have run another classic for some years now so am not entirely ignorant when it comes to mechanical parts and fixing electrics.

I intend to use the car regularly and tidy it up bit-by-bit as I did with my other classic. So working my way around the car you may not be surprised to read I have some questions. Please forgive me if some of the information would be in the workshop manual as I'm in the process of moving house and have already packed it!

a) The clutch pedal *clicks* at the very end of it's travel when released, is this normal and/or preventable?
b) Should I be depressing the clutch when engaging and/or disengaging the overdrive?
c) The windscreen washer pump is not working. The fuse is fine and I cleaned the connections up but no luck, replacement needed?
d) The washer nozzle on the rear window feels loose and spins freely, how do I remove or access this assembly?
e) I get an occasional clunk when coming to a stop that I'm not sure how to diagnose. Could be a normal feature of the brakes, gearbox, diff backlash, or a badly worn bush?
f) Is a camshaft swap an engine-out job for the B20?
g) Is lead additive necessary in these engines? Valve seat recession hasn't been a massive problem in my A-Series engines so far.
h) What is the easiest way to turn the engine over to set the points gap and tappets?
i) Of course the clock doesn't work, is it worth replacing it like-for-like or will it just die again?
j) The transmission is a little noisy - how does one check the oil level, and is it shared with the overdrive?

For parts - I believe I'm in need of:

1) Front-right sidelight lens (cracked).
2) Rear-left lens (cracked).
3) Front bonnet chrome trim (dented).
4) Interior front-left vent cover trim.
5) The original Stromberg 175 airbox, plus it looks like it would have had an intake hose?
6) Felt(?) covers for rear wheel arches and the back of the rear seats - they're wearing very thin.
7) Fuel filler cap (currently using an aftermarket replacement).
8) Tailgate rubber seal.

9) Entirely non-essential but I do quite fancy an early alloy grille.

I'd be very appreciative of any tips, pointers to parts suppliers or offers of bits!