90% chance its just the valve cover gaskets. replace them yourself!
get a cheap metric socket set (i bought mine at Lordco for $8), a Toyota Service Repair Manual (the official one, or if your on a tight budget, get the Haynes). now an NA is a bit different, i beleive you have to remove the throttle body.
and $1000 to fix? i would have told them to go fuck themselves. even Midas could do it if you dont want to, probably take 4 hours or so. do it yourself, LEARN BY DOING. if you want actual handson help, one of us could help you do it, as long as you provide refreshment
