AMD Ryzen 3 1300 - RM 519 (Coming soon)
Gigabyte A320M-DS2 - RM 345
G.SKill Aegis 8GB DDR4 2400MHz RAM - RM 299
Galax GTX1050Ti 4GB GDDR5 EXOC - RM 759
WD Blue 1TB HDD - RM 219
FSP Hexa+ 450W - RM 185
Tecware F3 Full Window - RM 139
ViewSonic VA2419-SH IPS - RM 525

Total: RM 2990 (ETECH price inclusive of GST)

If you want SSD to be in the list, you can downgrade the GPU to GTX1050 or even the CPU to Pentium G4560 (need to switch mobo as well) if your "coding" work doesn't require a fast processor.

Rotate to vertical? If you don't want to do some "hacking" and rotate the monitor "naturally" then you need to find pivotable monitor but they are expensive and not common on small size monitor (usually 24 inch and above).

AMD Ryzen 3 1300 - RM 519
Asus Prime A320M-K - RM 277
Kingston 8GB DDR4 2133MHz Value RAM - RM 281
Galax GT1030 2GB GDDR5 - RM 359
WD Blue 1TB HDD - RM 219
FSP Hexa+ 450W - RM 185
Tecware F3 Full Window - RM 139

Total: RM 1979 (ETECH price inclusive of GST)

Get IPS panel then, like AOC I2080SW, less than RM 350.

Save the money for a more powerful single GPU instead

Powerful single GPU > SLI

Do remember that not all games support SLI and SLI support by games developers is pretty poor at the current state.