Defib training for schools

Hi, as most of you know I've been in to my local schools and have provided CPR and Defib training for teachers and children. I'm hoping to do this for all Worcestershire schools but need a little help. I want to purchase 2 Defib trainer units to use as the ones I am currently using are on loan. All donations will be gratefully received and will help me to train our children to become life savers.