Propane
I gave the propane system to someone and started to look for an electric and alcohol replacement. The idea is that cooking can be done on the large diesel stove when its cold (as one would appreciate the extra heat). During the warmer days cooking will be done using an electric burner when on shore power and an alcohol stove otherwise. The BBQ can run on green propane canisters (which I would have to store outside of the hull – so do not want to have more than a few of those on board). This is the same way it worked on Merva and I think it was perfect.
Electric
It was easy to find nice and inexpensive electric burners on Amazon. I ordered one.

Alcohol
Ideally I would buy an Origo 3000 (same as on Merva) but much to my dismay – Dometic stopped making them. Furthermore; denatured alcohol is getting difficult to find.

Fortunately; someone decided to start selling a knock-off (or perhaps its a rebranded product from the same factory – not sure). It is called the Spirit Cooker 3000 and seems to be only available from a single, European, source.

So this leaves the issue of fuel. Methyl Hydrate can be used instead of denatured alcohol. Its cheap and readily available – but I guess it produces a bit of a smell. Sounds like its more toxic (contact and fumes).
Diesel
Getting a pair of old diesel camp stoves could work out. This would definitely provide a lot of flexibility and keep the fuel on the boat to just diesel. Well if I forget about the BBQ running off of green propane canisters.
