From Harbor Freight!

[Civil_War_Buff]

http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=95684

This is the best price I have seen to date.

[haroldPE]

yes, they were nice while they lasted, about 2 years, but eventually I erred and now they are kaput.  lost the top section off the 1st one, which was okay, since a height difference is needed anyway, but the 2nd one snapped in half one time, so that was it.

i come pretty close hitching the first time blind, so it's not so bad anymore.  wife and i cant communicate directions between one another, so that is no option.

cheers