Medal Purchase ?
The answer to your question, 'If such a medal were to be authorised, would I be prepared to purchase it' is, "Yes". I would not, however, purchase and wear an unauthorised medal since that would defeat the true 'award' element. I would also offer my time to help reduce costs likely to be incurred in processing applications and might also make a donation if this were to be acceptable.
When I answered Sir John Holmes' request for input in 2012, I began my e-mail with the words, 'Not for myself, but for future generations of servicemen and women who might experience a long period without any opportunity to earn a medal ...'. I don't know if you watched any of the parade at Folkestone this afternoon, but few in the RAF contingent had any medals on display: after our troops return from Afghanistan there may be another 'medal famine' on the way which will disappoint many, I am sure, and this ought to be avoided by recognising service and commitment.