I took a look at your model 50. (You give no indication why you offer the two files - 50 ad 73). Those CAESAR II displacements in the sustained case are similar to the values you state for your system.
Your question is not clear. Your likelihood of useful assistance is directly proportional to your ability to describe an interesting problem.
Your model 50 shows a selection of many constant effort supports. Did you actually purchase all those supports?
(I would've tried rigid Y restraints at a sufficient distance from the anchors to reduce the hanger bill.)

Again, if you wish people's assistance, be sure it looks like you put more work into your question than the work you expect from their answers.