A pair of 100 watt panels will run around $225 with free shipping. The poly, China brand we've have used for the last five years no problem. The used 120 watt Kyocera I picked up shorts the first 18 cells above 40 der F. This is a known failure mode for the year 2000 thru 2002 Kyocera panels.
Presently redoing the solar. The two we've currently have will go on the roof and we will purchase two 100 watt from Missouri Wind and Solar because of the foot print.
Stopped by Northern AZ Wind and Sun last summer and picked up several items. Nice folks to deal with.