I can get a set of stock Wrangler springs for my Scrambler pretty cheap. Will they hold up or should I get add a leaf's for them? I don't want to pay for new RE 1.5 springs.....Also, would BDS CJ 2.5" springs work? I can get a set of those also cheap............

They wont hold up for much more than a trip or two. Even with full length add-a-leafs they'll probably last just a couple runs. I hammered mine so bad they were S-shaped after two day trips. I'd look more into the BDS springs, there usually a firmer spring so they would be a much better choice than stockers. Still need to address the axle wrap with either set.