The trigger points new cost about $200. Involves dizzy removal and replacement, then re-timing. No more than 2 hours for the dumbest and most incompetent mechanic.
The injector seals are about $1 each. you only need to replace the "lowers." Once again, 2 hours for the most incompetent mechanic.
Go back to him, laugh in his face, and tell him it'd be cheaper for you to do it yourself, take 3 weeks, and screw it up 4 times.