I get the feeling that you are looking for a pressure canner, right? If you check with the home economist at your County Extension Agent Office,every county has one, you might be able to get some good suggestions. The USDA might have some good suggestions as well.

I know that pressure canners are recommended for all canning now, not just for low acid foods, but I've canned high acid foods safely for 35 years without using my pressure canner and have yet to have any problems.

I have a large Presto pressure canner and I find parts readily available. I don't use my pressure canner for anything else, except for a VERY large soup pot!