timing belt is under 20 bucks. I'd go ahead and replace it then see if she fires up. You may get lucky and not have any valve damage. If you want to check before starting it, pull your plugs and run a compression test on your cylinders. If the valves don't seat, you won't have compression.
If you do have valve issues and want to tackle pulling the heads and replacing them, I may have parts for you that I can ship for 8 bucks (flat rate boxes are great) Mine's a 95 VG30E. Not sure what the 92 is but prolly the same valves.
worst case, you spend 20 or so bucks and some knuckle-skin and she still won't work. At least then you'll know for sure.