I think we both covered the spread/spot question well Lou. Now I'm sorry I mentioned it at all. I'd be doing the same as you though as you can always get a second spread if it comes down to it and possibly use the spot for something or sell it if it doesn't work out.
One thing I didn't notice before is they list them as 6000K bulbs. If the supplier will put a lower temperature bulb in of around 4500K you are much better off. This is a more natural light and will be less harsh than the 6000K and higher temperature bulbs. If you look at what all the mainstream manufactures supply for various applications and as OEM it is 4000-4500K bulbs. Also the lower temperature bulbs have a longer life. 6000K will be very blue white and not as good to drive with.

