If you use 1*1, you will have 35 MAIOs.
the RF load will be much small and hence better network quality, RF Load= Kdtx*Hardware Load*(n/N)
where
Kdtx=0.7,Hardware Load=0.9 (Assuming 90% of TCH TS will be busy.
n= number of hopping TRXs per cell
N=number of hopping TRX (MAL list)=36 in you case.
Your will vane below MAIO CONFIGURATION.
BCCH 2ND 3rd 4th 5th 6th 7th
Sector 1 X 0 6 12 18 24 30
Sector 2 X 2 8 14 20 26 32
Sector 3 X 4 10 16 22 28 34