Questions about 318-to-360 engine swap in 1969 Charger

[MaximRecoil]

My Charger has a tired 318 which isn't its original engine nor even the right year (it's a 1973 or something engine; it was already in it when I bought the car in 1994). I recently bought a 30,000-mile 360 (LA) from a 1970s motorhome.

1. I've been told that I need a different oil pan and pickup tube, i.e., ones intended for a passenger car. Will this work with my car?

https://www.manciniracing.com/ma360cesupa.html

2. I've been told that the driver-side motor mount (steel bracket part) is different, but you can use the 318 motor mount if you use some spacers/washers. Is that right?

3. I would like to get new motor mounts (rubber part), but I've heard that the cheap ones from the auto parts stores use really thin metal and may be crooked. Are there any known-good ones I can buy? Are these what I need and are they any good? They are about 3 times more expensive than typical parts store ones:

https://www.manciniracing.com/manbenreprub.html

4. Since my transmission is a 904 and I'm going from an internally balanced 318 to an externally balanced 360, and reusing my torque converter, I've been told I need one of these:

https://www.summitracing.com/parts/BMM-10239

Is that right?

And is there anything else I should know about before attempting this engine swap?