Hi Sifu's, need some guidance on the renovation quotation. does this seem reasonable?

Car Porch
1 Remove existing concrete floor and lay new concrete floor 252sqf 2750.00
- Install RC-beam and BRC R8
2 Lay floor tiles 480sqf and skirting 80ft length 3824.00
3 Construct fencing wall 5x9 750.00
- Install RC-beam
4 Construct fencing wall 6 x 14 1580.00
- Install RC-beam
5 Install skylight 9x13, 6 1/2 x 14 4980.00
- 3mm polycarbonate (1 1/2 x 1 1/2 hollow frame)
Living Room
6 Remove existing main door and plaster after installation security 650.00
door, repair floor tiles
7 Demolish existing wall at staircase area 250.00
8 Construct wall 164sqf at staircase area for store room 2750.00
9 Install metal door frame for store room 340.00
10 Install solid wood door for store room, include door lock 380.00
11 Remove existing handrail and custruct brick wall 1950.00
Guest Toilet
12 Demolish existing wall 5 x 9 680.00
13 Construct new brick wall 3 1/2 x 10 1/2 h 690.00
14 Remove existing floor tiles and wall tiles, lay new floor tiles and 3500.00
wall tiles (8ft height)
15 Install new inlet water pipe 4 sets for shower, basin, bidi and floor, 750.00
1 set for washing machine
16 Remove existing waster pipe for squat toilet and install new waste 280.00
pipe for toilet bowl
17 Install oulet water piping at shower area 150.00
18 Remove existing window and install new aluminium window 2x2 350.00
19 Install flat plaster ceiling 380.00
20 Install aluminium frame bi-fold door 450.00
21 Seal existing window at guest room 3x5 290.00
Behind the House
22 Construct fencing wall 5 x 17 1690.00
23 Install metal door 3 x 5 650.00
24 Install skylight 7 x 20 3500.00
- 3mm polycarbonate (1 1/2 x 1 1/2 hollow frame)
UPSTAIR
Guest Toilet
25 Remove existing floor tiles and wall tiles, lay new floor tiles and 3500.00

wall tiles (8ft height), apply waterproofing
26 Install new inlet water pipe 4 sets for shower, basin, bidi and floor, 600.00
27 Install flat plaster ceiling 380.00
28 Install aluminium frame bi-fold door 450.00
Master Toilet
29 Remove existing floor tiles and wall tiles, lay new floor tiles and 3500.00
wall tiles (8ft height), apply waterproofing
30 Install new inlet water pipe 4 sets for shower, basin, bidi and floor, 600.00
31 Install flat plaster ceiling 380.00
32 Install aluminium frame bi-fold door 450.00
Others
33 Remove existing wooden door and frame, install new metal door 1140.00
frame and solid wood door 3 sets
34 Painting interior and exterior (Jotun True Beauty Matt) 7500.00
** For all tiling works are NOT include the tiles
** For toilet works are NOT include the water closet and all
accessories

TOTAL PAYABLE (RM) 52064.00