If you spend a little time on it and get it finished off these make good money - I've sold three this year and all of them flew out the door!
Has the car been stood for a while? If so that's why it's rattly - they all do it. If you run it up to temp/pressure etc. for about 15 minutes that should let the lifters fill up and quieten it down.
They sell well as they're only group 8 and come with all the toys, wingbacks and PAS as standard. Good cars IMO
What's you location out of interest?? And a few details if you wouldn't mind...
a) Mileage?
b) Any history?
c) Any T+T?
d) Price?
PM me if you like
Jim.