Planishing hammer advice

[pacificustoms]

I'm in the market for a nice (US made) planishing hammer. I'd like a larger machine therefore there's little chance I'll have to replace it in the future. Here are some of the ones I found that I am working on choosing between. Do any of you have any experience or know someone with experience of any of the following:

http://www.airbosstools.com/ Looking at the pro 30 model


http://www.northridgetool.com/cpstylehammer.html


http://www.vansantent.com/sheet_meta...ng_hammers.htm
Looking at the 36 inch floor model


I like the cook machine, just wondering if its really twice the machine of the others as it comes with almost twice the price tag.


Any advice or suggestions let me know, also if you know of any other machines let me know. I don't really have any extra time to build my own or else I would consider going that route.

Thank you!