Panhard Bar and Shock Relocation Questions

[Budget63]

I did a search, but didn't see any threads dedicated to the differences in aftermarket Panhard Bars and rear shock relocation kits. I have been browsing these forums for months now, and know that No Limit Engineering, POL, Speedway, and Summit Racing all offer Panhard Bars. Any other Manufacturers, that I should be aware of? I was pretty surprised that Summit didn't carry a rear shock relocation kit for the C10. Any reasons to not go with a certain brand?
The No Limit parts look to be the beefiest/most complete, but are considerably more expensive than the others. Anyone out there running both pieces? At this point I am planning on just doing a static drop 4.5" in the front (spring & spindle) and a 5" drop in the rear (spring). Are the shock relocator kits from Speedway and POL good quality? Anyone have any pics?