The timing belt is the biggie Penny, so you've done good.
Should prob change your oil, oil filter, coolant and plugs. While you're at it, check the waterpump for any 'rattle' or leaks. Maybe do that also anyway!
If your bogan BF won't touch your Skyline to help you with, I'm sure there's many lads who would help.
Give me a holler if you need help.
My Stag has only done 60K, but I'm already accumulating new pump, belts etc.
Might even do a quick oil change and plug change before Kadina this weekend.