Followup:
I followed Lantley's (post above) and purchased the jacks from Harbor Freight. I read the reviews on-line and the only thing negative about them was the weight and the price. After seeing them in the store, I had no problem with either weight or price. I purchased them... $99.99 with tax, $106.??
The first thing I did once home was to determine just exactly how much of an angle can my 5er take. So on flat ground, I manually raised the jacks until the completely stopped. Actually, they raised about 26 inches. I don't know why I couldn't get them to extend farther at the campground.
So now I know the limitations of the front landing gear. I even used black marker on the legs to indicate where level was in my drive way and marked the max extension. I'll probably go back and try to mark every 2 inches of extension, so I won't hyper extend again.
With that, (for practice purposes), I lowered the front again and this time rested the frame on the jacks. Doing this, it allows a lot more space or ground clearance from the ground to the bottom of the jack foot, allowing for quite a stack of lumber now, or the ability to extend the inserts several more inches.
On an incline, this will take care of my problem. Also, I have a nice cozy place to haul the new jack stands. They are now part of my permanent arsonal.
Once again, thanks everyone for your input. Everything is much appreciated. In about 3 weeks we'll be on a very unlevel site (front to back), so that will probably be the first real test of this endeavor.
