You stated 'actually, the caswell's 2hp unit with kit looks like a good deal- is this a good item to buy?'
I bought this kit about 4 or 5 months ago and if you have 220 it is an excellent buy.I was worried when I first bought it because it seemed to get really hot but when I called customer support they told me this was normal.I have used it for over an hour straight since then putting a lot of pressure on it,(buffing a set of aluminum heads)and have had no problems what so ever with it.I highly recommend it for the price and quality.It is also a very smooth operating buffer with very little vibration and is also a very quiet running buffer.It comes with a good warranty and compared to the price of a 2 HP Baldor unit it is a steal.I hope this is useful in helping you decide.I always believe it is better to have the extra power in case you need it than not have enough but that just my opinion.