Steadyfast advice

i put steadyfast on our last RV and it greatly improved stability. Did it make the trailer rock steady? no, but noticeable improvement. Later I installed scissor jacks behind the rear wheels and moved the rear steadyfast bar from the rear jacks to the scissor jacks. After that the trailer was very stable.
As far as whether they'd work with your trailer I expect they would but you should call them and ask. My experience is they are very helpful and will work with you to get their system installed properly with best results.