Hello deadwitch,
I'll tell you how much we spent a month as I was in the same position as you in terms of working out budgets and wondering how much others were spending!
Our hours changed according to what we could afford but the last 3 months we were running a 27 hour programme, with a 3 hours workshop led by my consultant...it came to £1,864.
Tutor1:£16ph (she's a lead tutor)
Tutor2:£15(she was paid 13 for a long time but her other family decided to increase her pay so I had to too).
Consultant: £120ph.
However, my last consultant was charging £60ph so do "shop around", I've also learnt that you can negotiate on how often and how many hours you need.
You can also have a supervisor who can come and do the workshops to alternate with the consultant so it saves you money (they usually aren't more than £50ph).
We have used Caudwell and short break money (£900) towards it all.
I sympathise with your worry as it's such a financial strain(I was permanently glued to my calculator trying to work out what we could save on), but try and do the hours you can and use that as evidence to request money from LA.