I have two CECHA01 and one CECHE01. They are all dual 90nm models and TBH, these consoles could get HOT. On OFW and syscon fan controller, fan won't accelerate till temp reaches about 80C. All of my consoles have webman mod installed to take over fan control with max temperature set to 65C. Once you get temperature under control, it will last way longer. I also put APS226 PSU in all of them, delided CPU&GPU and applied good thermal paste. Other components such as laser diode in old consoles are also very fragile. I had to replace two laser assemblies on these consoles as they get old and unstable when reading discs.
Your console is in good shape and you should really take good care of it. The price of launch models are rising as they get harder to find, and the price on ebay could easily go up to several hundred dollars.