I have had cylinders shop bored using a Sunnet hone. It is basically an indexed 4 stone fixed hone for precice sizing and surface finish.
I found this kit on ebay and amazon for the price of one one honing job, about $75.00. It is similar to a Sunnet hone, which is a production grade tool. Sizes vary, but a 34mm to 60mm range unit is available. Has anyone tried this?
Besides the hone, you will need a 1/2" heavy duty hand drill, setup to hold the cylinder, honing oil, bore gauge or telescopic ID gauge with micrometer.
I have 3 cylinders to be bored and another that I soft seized and havent looked at yet. All the other stuff needed I can get ahold of.