If you attend a uni in England, you should be eligible to apply for the NHS Learning Support Fund to receive a training grant of £5,000 per year. It also reimburses travel and additional accommodation expenses (within limits) associated with placements.
You need to compare finances carefully for attending each uni. With the NHS Wales bursary you will also be able to apply for a maintenance loan from SFW but the amount you might receive has not yet been agreed by the Welsh government.