James,
Thank you for your post. There is a range of penalty here and what you receive depends on a number of factors, including the Sheriff presiding over the case and the quality of mitigatory representations advanced on your behalf. Therefore, I would say that you could expect a disqualification of anything between 9 and 24 months.
Clearly, if you wish our assistance here I and my colleagues would be more than happy to help.
As your breath reading is below the threshold of 87.5 microgrammes, nothwithstanding Scotland's lower drink driving limit I do not consider that you would be classed as a High Risk Offender.
Trusting this is of assistance.