Thanks to cre, I've got the coolant and heater hose exploded diagrams with part numbers (below). I'm getting ready to replace all the rubber lines, since I've now had 3 coolant lines pop leaks in the last year. It looks like the best way to replace both these 90-deg bends is to remove the thermostat housing. The fit is very tight, but removing the housing first looks like it will open up the space. Cut the existing hoses if you need to, then remove the cut hoses once the housing is off. Attach new hoses to the housing, then install the hoses to the pipes on the block as you reinstall the housing with a new gasket.
http://www.cygnusx1.net/Supra/Librar...spx?F=1603&P=1
http://www.cygnusx1.net/Supra/Librar...spx?F=8716&P=1