Hello Peta,
I'm sure we've been here before, but just the same...
As you'll know in recent months many organisations have had funding stopped or else cut. I wouldn't hold out much hope of finding fully funded courses at present, even if you can find a place where suitable training is offered.
Your disabilities present a number of potential HS problems for organisations, and despite access for all the realities of a disabled student in a workshop environment probably have administrators quaking in their boots.
I would imagine you'd be better contacting your local disabilty group and asking for advice there. They are far better qualified to answer specific questions regarding grants and funding for disabled people, and they may have access to course information which is not known to the wider world.
I do remember that a long time ago now we arranged for a representative from the Kent club to visit you and invite you to the club...did you pursue this avenue, and if so are you still a member?