I uses to carry a Svea 123 and had the punp kit which consisted of a pump and a special fill cap that it plugged into. It made getting the stove going much easier. I also had a cookset that the stove fit into pefectly, forget who made that kit. Have not seen either item available for a long time. The cookset was a Sigg Tourist, I have been informed
The problem I had with the stove was the burner had to be removed regularly and a little wire inserted through it to clean out clogs. Since the burner tip and stove were made of brass, it was soft metal and once I split the tip about 3 days from civilization and had no stove to cook on for the duration. That was in the early 1970's. Today there are so many better stoves available. I use a MSR Dragonfly mostly, since you can regulate the flame from simmer to rapid boil. Sort of pricey but worth the money. I think I paid $19.95 for the Svea when I first bought it, that was a factor in the choice at the time. Good luck with finding a stove that serves you well. I did like the Svea, especially after adding the pump. I doubt anyone can find the pump kit today! Cheers.