Paved Drive - suitable sub-base?

[plasteredric]

I'm finally getting round to finishing off the drive and thought it best I seek a bit of advice first.

Previously the whole of the front was gravel so I dug it all out about a foot deep where the drive is to be, which was full of bricks / rubble / broken glass and all sorts of bits and pieces.
The brick/rubble has been broken down and put back in the hole along with a demolished wall that originally spanned across the front of the garden.

This is how it looks at the moment...
photo_2020-09-28_13-59-34.jpg

I'm planning on using some 2ftx2ft 2" thick slabs in two rows with gravel between.


Now I'm not sure how best to proceed so my questions are:
Can I just use a wacker plated to flatten the hardcore? if so, is it best to do it in layers? currently the rubble is about 20cm deep
Would it be a good idea to add some MOT1 over the top to give a tighter structure when its compacted?
Should I then be using a concrete layer to lay the slabs? or just sand?

Any pointers are greatly appreciated.

 

[dontbelieveawordofit]

i think you dug it too deep ....and should have put the bricks in a skip.... but it is what it is... i’d whack it as it is and maybe blind it with a couple if inches of 1/2”to dust then whack it again... shutter it and pour 5-6” concrete each side to drive on .
why mix concrete to lay slabs on when you can just mix concrete and save on the slabs.
not sand whatever.
just my opinion.