Sounds like the Christmas Story to me all of these keyboard tough guys "Double Dog daring" you to just go get it, yet I haven't heard any volunteers.

There ain't a stand made thats worth getting covered in poison oak over. If it were me I'd get some of the spray and kill the vines off then I would call Cabalas and order a new stand to put in a poison free tree, then while shed hunting next spring I would retrieve that stand after giving the spray 6 months to do its job.