Installing SCS on BG:EE

Hi all.
My apologies for making a thread for this as I'm sure it's been asked a million times before.

I'm struggling to install scs onto my bg:ee game.
I've read over these forums and everything points towards BWS, Big world fixpack, etc etc, and I have tried these but with no success (for about 5 hours last night ).
To me it seems BWS is massive overkill for what I want to achieve. I do not mean to diminish the efforts people have gone to to create such tools - It's an amazing community to have things like that.
However I have only a handful of mods I want to install.
I have a few of my own, just custom items.
I want to install 'diff tweak', so i can have a kind of LoB 'light' difficulty.
And I'd like SCS for the improved AI and smarter enemies.

Can any of you kind souls talk me through how I can do this?

I've tried installing SCS on it's own, and it tells me i'm missing the 'initialise' component.

I've tried installing bws but it says i need the fixpack - I install the fixpack then it says something else is missing.

I'm really just looking for the most basic, WEIDU method of installing scs onto bg:ee.

Thanks in advance