@DuncanBigty For starters I have also used 8500 bricks approximately for a 100/50 fence. Before plasta and other things thats approximately 2.8m on fence bricks.I only come on sight on Friday,Saturday and Sunday.
@DuncanBigty only the number of poles before roofing I could fail to estimate. The rest is manageable, I have worked on 7 one bedrooms rentals (same fence) whose initial tiling budget had been shared at 40,00,000 but I sourced at 11,00,000 later