Sourcing for New PC

The PC broke down again over the weekend. It is the power supply issue. The original hard disk has also confirmed to be 'certified". Do note that the graphic card and 'fan' have also been replaced over the last few years. This is not surprise as the PC is 12 years old this year. This is not bad provided I only thought it could last around 4-5 years. 

Above a quotation for replacement. This spec is newer but slightly lower than previous PC as it based on the RM 3k quotation (versus the old PC, which is around RM 3.5k at the time, probably equaivalent to RM 4.5-5k in today's market after taking into consideration of inflation). Should I proceed?