928's are dangerously addicting. I have three in various states of disrepair.
1st thing - use the Rennlist 928 group - lots of information for everything you'll need to do.
2nd and 3rd - it's an interference engine. Don't risk an old belt - if it breaks you'll have valves and pistons meeting in ways you don't want them to. Replace the fuel lines before you even attempt to start the engine. 928's like to burn when old fuel lines break.
Have fun - keep us informed.
