you can see the same in Okumuras palace with the additional Cross and different colors for the gates

Shrine is not random. its frame based when you talk with it. it can be manipped on emulator and PS2 easier to find the seed you are on during the game (time wise when you booted up the game etc.) but on PS3 we dont know yet exactly how to do that (afaik atleast same with P4)

There is no Load Remover for the PC version of the run as for ng+ save on PC its less of a hassle to make one as you can use Cheat engine with a Cheat table to edit everything you need.

There is also the case that you can not transfer saves around in Strikers as in the saves are your steam id saved so you wont be able to load a save of a different steam id in it. if you have a master switch or PS4 version there is a tool to convert those to pc but no tool for pc to pc

the Converter from Console to PC you can find here - https://github.com/zarroboogs/p5spc.saveutil/releases/

not quite the unique idea tbh. But you can run anything you want to run just dont expect it to be made a categorie for it. as for the run itself it doesnt sound much different than easy runs are rn.

you will just play mostly again as haru, Ryuji, sophie and probably also Zenkichi later on for mob fights as Arsene exp to lvl is bs so you cant learn anything with him, giving him mostly just lucky skills you get from small chest + bufula and technical adept from 2nd and 3rd Jail.

you will need to have footage of your run of course yes, if you want it to submit to the board that is.

The ps3 even without ssd has faster loadings than a 90k model PS2. I would recommend switching to either PS3 as p3 fes only costs 10 bucks there or you can do also the runs on emulator