well you arent in the VW market are ya.
Head itself is worth $300-450 and will sell in less than 2 weeks on vortex.
Bottom end is worth about the same.
The little things like the drivers side throttlebody intake is worth about $80 for MK4 jetta/gti guys for better IC routing.
If its got a good timing belt, head, etc. the motor is 100% worth the 1K to someone who just popped a timing belt, and crashed the valves and pistons. Hell a timing belt kit is $350, and we charge $350-400 labor to replace it. Less the head ($300,) pistons if they are dimpled and cracked… it adds up. A 1.8T can be swapped in and out in about 5 hrs on a MK4 chassis.