Can spareparts still be aquired for the old cars?

[Neiro]

I'm likely taking delivery of a DAF 66 (6626) next week and have started hunting parts that I believe I'll need. So far it's been hard.
I live in Denmark and up until a few weeks ago I had no idea DAF ever produced cars (and to be fair, they stopped doing so before I was born).
In fact not even the guy at the local Volvo and Renault dealership knew that was a thing. 

Anyway. Do any of you guys know if there's a place in the EU I can browse spareparts? 
At the moment I'm aware of the following faults on the car:

1. Leaking from front of the crankshaft - I believe I ordered the correct kit to fix that. 
2. Rubber covering pieces on the front shocks are in poor shape (not sure what they're called, but manchetter in Danish)
3. Battery dead. Someone on this forum posted that a 063 type battery would work, so I can probably get one of those
4. Side window behind the left door isn't attached to the B column. I'm guessing there's used to be some piece of metal there, which is now rusted away.
5. The hoses from the air intake to the cabin cooler and into the interior are broken. I'm thinking of just stuffing some silicon hoses on instead?
6. Exchaust manifold has a minor leak. Not sure if we can weld it yet, but if not I might want to look into a replacement part.
7. I was told the gearbox belt would be a smart thing to replace. Haven't driven the car yet though (minor gas leak at the solex), so don't know if that's a thing for now or the future.

Any input from you smart folks? 

ps. I'm not sure if the original engine is in the car. The autohouse listed the car as a 1.1, but according to the internet a 6626 is supposed to be a 1.3. Monday I should know the engine code. Is there any significant difference between a 1.1 and 1.3 with regards to spareparts etc or is it merely a question of piston travel?

Edit: Also I'm new here. Obviously. Be kind, and sorry if I'm posting in the wrong place. 

[swissdave]

Hi neiro, Dafhobby in the Netherlands stocks almost everything for our cars.
dafhobby.com/en/
I think with the engines they are basically the same other than the size.

[andrew]

Welcome on board! The problems you've outlined aren't difficult to sort. The main thing to check is that the transmission behaves itself and once this is set up properly you'll have a lovely Daf!

DafHobby are brilliant and can sort out most parts you'll ever need! The battery IS a 063 & the pipes from the air intake are normally cardboard, so fall to pieces in front of your eyes, so don't worry too much about them! If you want more advice, post here and join the Daf Owners Club-money well spent!

[Neiro]

Thanks for the pointers and warm welcome.
I'll be sure to check back once I have the car in my garage and don't understand what I'm looking at.

[starider]

Hi,
Welcome from me:there is always help and advice on these proboards. Reference the engine, all water cooled DAF engines are Renault so main engine parts are not a problem. As recommended Dafhobby are probably the best in Europe[possibly the world].The DAF Owners Club hold some spares and there are several good suppliers of used and new spares in the UK. As Andrew says joining the club is money well spent and the club magazine is excellent, with informative articles and histories of all things DAF. When Volvo bought out DAF they contiued with an up-graded 66 which was named Volvo 66, so many parts are the same.
You quote it as 6626, can't remember model numbers, but is it an estate[5 door]?

[Neiro]

It's a marathon coupe model year '74 in my case.

[bobdisk]

It is probably one of the best!! Any chance of some photographs?