As I recall this engine had the crank pulley problem. If its just bent valves and crushed lifters, they're pretty cheap. Might be worth fixing rather than replacing...
Not if the lifter bores are toast , I used to think it was rare but the last two 1.9 IDI heads that came through here had toasted lifter bores.
It overheats right away...likely a cracked head I suspect. Anyone got a lead on a head?