Hey Beech,
I'm not sure if this would be a possibility.
What if you company quoted for the job. That quote included Mrs Beech, for instance, loading bricks into the thingy which loaded bricks up to the bricky. The trust could charge Mrs Beech for the loading, and the bricky for doing the job.
If MrsB was willining to put on the gloves for a while, would that be a possibility?
(Not asking you, I'm asking the accountants)