Never seen that before... Are you sure that the "tube" is an integral part of the tights? Wolford still sell the bodytube dress.
Wolford was never cheap. Bodysuits for 500€, knee-highs for 25€, 10den pantyhose for 80€, etc. Yes, you can feel the quality, but I don't believe that this price can be justified. Also, the look (the real look, not on the photos) is mostly boring. Falke is no worse in terms of quality, but at least 30% cheaper. Oroblu is as twice as cheap.
Regardless the price (with some exceptions) I prefer Oroblu.
Oh... Another idea. Not self-bondage though. You need another person.
o- Put the StarckNaked (or similar, since they do not exist anymore) pantyhose on
o- put another pair of regular pantyhose on arms
o- Optional: hands can be bound behind the back
o- pull the tube all the way up as tight as possible and tie it off right above the head
o- pull the rest down
o- put a (posture) collar on the neck
Ideas keep flowing ...
What about oversized tights? A pulling rope can be sewn into the band of the tights (just like in swimming trunks). When you are inside the pantyhose you can tie the pulling rope to a stationary object, pull the upper part over your head and "seal" your self inside by moving away from the object. Then you can use any method to bind yourself inside. E.g. pantyhose single-glove.