First, super big thanks to everyone for the advice with the hoses and expansion tank. I wrapped up that job today, with all new radiator, expansion tank, thermostat, heater valve, and hoses. I put the level sensor in also but need to wire it up to the dash later.

In the meantime, I am getting some instability in the idle (even just sitting in park fully warmed up) and the idle bounces when I drop my foot off the brake. So, I figure good time to do some additional maintenance. Here is what I have planned:

clean throttle body (replace gasket)
replace pcv breather nipple
replace oil trap / separator
replace brake check valve
blow out the hoses connected to each to be sure no plugged hoses

while I have the throttle body off , anything else I should be cleaning, etc., as preventative maintenance?

It all looks pretty simple from the FAQ and other walthroughs. Any advice or warnings? Things to watch out for?

Thanks again.