Water pump & thermostat gaskets are usually in the kit.
It could be sensible to change the rocker cover gasket as it's likely to be worn out too, if it's as old as the other parts. If it leaks, the oil can affect the plugs.

"He wants to first just put a new belt on, spin the camshaft by hand whereby ?check pistons have compression? He says this will rule out damaged/bent valves."
Yes it will.

That explains the oil leak was most likely from the cam seals and/or crank seal.
Change all 5 seals, hydraulic adjuster, 2 ...

Its plausible.
He probably tested the coil lead.
But double check that he has. Because if that fails, there'd also be no spark.

The Alaska highway sounds like an incredible Bongo adventure! Its sad when it ends. But we do have a few members from Canada. Maybe one will see your post and get in touch.

The numbers on that link are correct.
The cap will only fit one way.

The fuel filter is under the van, at the front of the fuel tank. It's a black canister on the chassis. Its held on with a bolt through the bracket & 2x 10ml nuts. When you disconnect the pipe, fuel might spray out.

Trouble is ...

Theres no common problem why a V6 suddenly cuts out, they do it so rarely unless the cambelt breaks.
As it happened after you'd run low on fuel, you could check the fuel filter.
Dirt can block the filter enough to cause fuel starvation.
Especially if it hasn't been replaced recently.

You'll be able to find a diagram on Lush Projects site.I hope it helps. https://lushprojects.com/bongopartsmk2/

Theres some info in this post that might help: viewtopic.php?t=69147

Thanks for the update, it will help others.

We've attached an airline ho the pipe under the bonnet and blasted air through before. But if yours won't blast then maybe its kinked somewhere?
Sometimes a motor will make a noise, but still not pump, because the impeller has failed and isnt spinning.

Bongos moonbathing & sunbathing, lovely!

D2 Services Medway
D and D Autos in Ashford.
These are the only names I found in a search of the forum.

That's great to hear! There aren't many vans that are as versatile.

Once you get access to it, just clean any loose bits off the back of the fabric, then spray adhesive and smooth the fabric back into place. Lots of helpful videos on YouTube, like this one: https://youtube.com/shorts/OhdGGecX6W4? ... kOQZE58d8V

Common cause is a faulty mass airflow MAF. There are 2 types so you need to match the number sticker on yours.