fellow VNA operators/instructors, i need help with emergency escape.

my company uses a number of VNA man up machines across several sites.

an issue we have is with emergency escape in the event of machine failure.

we have harnesses in the machines but we no longer have a training provider for Scape and the decision has been made to find an alternative method.

so now i am looking for some kind of manual/mechanical/hydraulic platform that can be raised and allow the operator to be lowered but i am struggling to find something suitable.

my concern now is that we have no way of lowering an operator in case of machine failure and it p-otentially could be a big issue for us.

have any others come across this problem? any ideas or suggestions?