Aluminum slant build

Ok, I'm gonna block rock the lower half [more on the lifter side] and install steel rods with washers weld toward the tops, then fill the top half with the idea of the rods as back up supports, so worst case the the top deck slip and I start over.

but this is feasible and cheaper than buying wide flanged sleeves, CNC pressing them in AND still block rocking the lower half to support the new liners.

liners are like [the custom ones I'm looking at] around $70-$100each and thin I need to find the shop with the cnc, let alone the block moving around and then needing complete re machining.