The final section of the MPS-10 gives some comparative cost estimates for several solutions. The comparisons are with a PDP-8/M.
http://www.willegal.net/blog/wp-content/uploads/2020/01/MPS-10-cost-performance.pdf
One interesting thing to note here is that the PDP-8/M solution, though it is more expensive, isn’t orders of magnitude more expensive. It seems to carry a 50% cost disadvantage.
So finally, here is the entire document in one PDF.
http://www.willegal.net/blog/wp-content/uploads/2020/02/logic-products-MPS-10-plan.pdf