Hi Deep, expect a type1 (crushed concrete) base of no less than 150mm, 50mmm sand, then your 60mm driveway blocks, so a dig depth of 260mm across the board.
Block paving is generaly £10 upwards per meter for the blocks themselves.
Based on 90m2:
Waste removal would be approx £600+vat (approx 24 cubic meters removed)
Type1 sub0base would be approx £350+vat (approx 14 cubic meters)
Sand for the 50mm screed base would be £180+vat (approx 4.5 cube)
Then finaly your blocks, we lay a great deal of the Brett Alpha paving (3 sizes laid randomly in lines), this runs at £1485+vat for 90m
Then £50 or so on the kiln dried sand.
Thats basicly the drive itself, then you have edgings, walls, steps ontop, and of course the labour and any machine hire charges
Labour wise, it generaly runs close to tandem with the material prices, assume around £2k+
HTH