4 fixits on the list, not sure what time commitment I'm looking at. Any tips are appreciated.

1. Replace heater core - getting a whiff of antifreeze as I drive.
2. Replace Squirrel cage blower - its just starting to chatter
3. Replace ignition switch - its locked up a few times, but still working
4. Repair Cruise control - hasn't worked, ever.

Anything else under there I should take a look at while its all apart? Any tips on getting parts at reasonable prices?