When the temperature high until engine shut down, it means the over heating already caused your air fuel mixture inefficient to burn anymore. There's a chance that your gasket already fried. There's nothing much you can troubleshoot or do, but you can continue to monitor and hope things is fine.
1) Monitor your engine oil color on weekly basis. Make sure the color stays BLACK. Should you see the color become NESCAFE AIS or KOPI BENG from restaurant, means your head gasket already fried.
2) Monitor your engine oil LEVEL on weekly basis. Make sure the oil level stays the same atleast for the next 2 months / 5000km. If you notice oil level decreasing on weekly basis, on a hot afternoon whilst your engine is in working temperature, get someone help you step on the gas pedal to simulate a 4krpm revs, you yourself go to the back of the car and monitor your ekzos see if got white smoke kamout. If yes, meaning piston ring sudah koyak. Again, nothing much you can do but continue to drive the car and top up engine oil. Until you have budget of 2.5k, then send the car for full overhaul, may be can consider 1 shot kasi stroke up 1.6

3) If item no.2 detected engine oil consistently decreasing yet no white smoke, there may be engine oil leak. If you can see it drip on the floor, that's not too horrible. Could be crankshaft oil seal, camshaft oil seal. All these can be changed externally without going through major surgery. However, if you can't see oil drip on the floor and engine oil consistently decreasing and no white smoke.... bugger your engine is beyond item no.1 damage. In the morning before warm up engine, start it and open radiator cap to see the coolant change color from whatever it is originally(green/red/brown/rusty orange), to slowly turn white. This means engine oil goes into your coolant.
If none of the above happen to you for the next 2 months, congratulations you just saved yourself from a major overhaul that may cost you 2.5k.

Good luck
Thanks a lot David for the detail checklist. I will monitor it.