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Hmmm, the proverbial question indeed. My suggestion would be to drop a line to any one of our Site Sponsors listed on the l/h side of the front page and talk to them. They are professionals all and will not steer you wrong. If you then end up with a couple of machines on a short list, you could then enlist the assistance of owners of similar machines from the membership to help you further narrow the options in your favour.
Best advice I can give you at this early stage. All the best,