i was asking myself the same question some times ago, and i have not find the answer, but clearly the identification number definitely won't start a 000000 for the first 110 in 1983.
on this link : www.landstory.net , between 1983 and 1990, the 90, 110 and 127 production is estimated at 175000 units (75000 90, 100000 110 & 127)
my 6 digits are 205177 and my first reg is april 84.
maybe someone else have other information to share !