I've installed several dipstick tubes in my days. Tapping at the top bends them useless.
The trick is to use a tool to grip at the bottom of the dip stick tube above the block seating lip (gripped loosly) and tap on the gripping tool there.
I use vise grips locked loosely in place (some tape on the vise grip jaws helps not mar the chrome in my case) around the bottom above the block seating lip. Have an assistant hold the vise grips in place from underneath the car and from above the engine using a long peice of rod bar stock or wood resting on the vise grips, then slowly tap on the bar stock to drive the dip stick tube (via vise grips) into place. It’s a press fit so keep on tapping until well seated.
Again the job is more easier if you remove the motor mount or at least take out the main motor mount bolt and jack the engine up a little.
The method is similar as when removing or installing the torsion bars using Mopars special install tool.
To pull the starter - you'll need to pull the header out of the way. Remove the header flange bolt to the exhaust pipe, remove the header bolts to the head, muscle the header down and shifted forward. Again it helps if you first lift the engine up some by removing (you guessed it) engine mounting bolt. Now you have access to the starter.