The Spin Out.
There will be no need for any halt.
In the event of any spin out, you will need to be sure that if you are actively trading the parent stock at the date of the spin out that you match the trade to "settle" before the actual spin out or after the spin out. Getting this wrong can cause you to have a headache of sorts. For trading the post "Spin Out" stock(s) you need to keep track of what you trade and how much etc. carefully for up to 6 days as it takes that long for the actual paper shuffle to occut and pass through the 'Transfer Agent' and finally reflect in your Brockerage Account. To trade 'Post' spin out you may have to call your Floor Trader to place the order, at which time they will tell you that you will be responsible for the accuracy of your instructions to them, as they well not see the shares showing in your account due to the time frame involved in the papre shuffle and Transfer Agent registration of the actual spin out transaction.
Old Joe
PS: The easiest way I can think of, given the underlying variety of JV's, cash and other assets on hand, and shares held in JV's (both present and from past JV's), etc., is to simply spin out the JBL holdings into a new (shell company) company and couple it with a new PP to provide the cash to carry on with operations of the new company (though $x,xxx,xxx.xx could also be rolled over into the new company, thus eliminating the need for the PP untill some time later). The Windfall vs all other assets could then be further split if the need arrises on much the same model.
As for the remaining Warrents: Negociations would be nice, but if those holding these warrents are being difficult, Well F um. Stick them in with the Windfall (as they were issued long before DE broke into the limelight).