Yeah, that is the downside to buying the disco's, they cost way too much. I had planned on doing exactly what you mentioned riverfever, but was surprised with some JKS's as a Christmas present and love them now. I've changed my height once already with them and will be again within a couple months, so having that ease of adjustability is nice.
That being said, why can't you just grab the links off the same vehicle you grab the bar off of and do what riverfever described? You can even take it one step more and replace the top nut on the link with a wingnut and make the link completely removable.
Edit: Just found my notes on it. For the parts to make the bottom disconnect, all you need is a 7/16ths by 2 1/2" hitch pin with a 5/32nds cotter pin for each side. Rubber washers would help to get rid off rattles and movement in the components. I had priced them up at the local hardware store for less than $8 for all of parts.