>Uh huh... I know more PhDs that couldn't engineer their way from a paper
>bag.  Amazing how easy it is to get an advanced degree now days. Not to
>offend anyone here with an advanced degree... :-P

I still smile that I got my current job with a polytechnic certificate and 
30 years experience, over guys with a MEng straight from university.

Not to offend anyone with any degree.

Bu tot come back to what the OP is trying to do - as someone else pointed 
out you are way better off to purchase something suitable, unless you 
already have the experience to design the unit - in which case you wouldn't 
need to ask here. If you are looking to get into that area of expertise, 
start with smaller projects, and work up to that.

As an Irishman is reputed to have said - if you want to get there, I 
wouldn't start from here. 

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