This is my first time posting here so please be gentle.

My fiance (English) and I (Canadian) will be getting married in late September and have plans to apply for FLR(M) as soon as it's possible. I'm currently on a tier 5 youth mobility scheme visa which will expire in January 2019.
My question is in regards to adequate maintenance and whether it's the best option for us.
My fiance has been in full time employment for the past 5 years with the same employer. I have been working at my job since November 2017. Our combined incomes are over the financial requirement however, as far as I understand, your monthly pay slips should show £1550 or more over a six month period and neither of us come close to that.
My fiance receives a disability living allowance but nothing else in terms of benefits. We pay rent and council tax without any assistence. With his income alone he would not be able to meet the £114 per week requirement but with our incomes combined we would be well over the requirment. Is this at all possible?