I think its better to let sleeping dogs lie for the moment, how long has it been since you went bankrupt, the reason i ask is that due to technical reasons even if the OR has taken the decision to exempt it, it can be some time before you get an official decision informing you of that decision
My own personal experience (October 2011) for a works vehicle was just over 4 weeks, but I was quite pro active with my trustee in getting property/tools/vehicles sorted out.
-------------- Views expressed are my own personal views, based on what has happened during my own BR process unless otherwise stated. Professional advice should always be sought.