Yes that would be a way to go if you are willing to sacrifice a model 53. The 22 cylinder for those is worth a premium because they are longer than a normal K 22 cylinder by the way. The barrel from the 53 also has some value. What are you going to do with the 22 Jet cylinder?

Just out of curiosity how much is he going to charge for the conversion work? Is he going to install a lug for the extractor or install locks on the yoke.