Hi Dinu,
I did some estimates this morning and I have:
The first and second courses were about 45 bricks each.
3rd and 4th were about 43 bricks.
5th course at 41
6th course at 38
7th course at about 30
8th course at about 22
9th course at about 19
Starting with the 10th course you're in that final top and not using much bricks so we'll call it 25 bricks to finish it from there.
That's about 350 bricks. Add 50 more bricks for waste and you're on track.
