Is changing a timing chain/belt on a 1991 Pontiac sunbird a difficult job for a do

[george a]

it yourselfer? I have changed water pumps on vehicles. Some difficult, some not.

 

[Loonerone]

I'm as well a do-it-yourself type with reservations.
According to a Haynes manual for Sunbird, it appears to be rather involved, however that is my perspective. It may well be not very difficult and since you'll have to remove the Waterpump, replace it as well.
The limited room of which to work is a drag.
Most shops charge around $500.00 for such work probably because of the limited access.

Update US about your progess, thank you !