Continued with the stripdown and cleaning process a bit this weekend. Have pulled the pistons and liners. The liners sat pretty well in the block due to carbon buildup. I was able to get two of the liners out by tapping them up from the underside with an aluminium tubing. The two others not. I made a liner pulling tool by grinding a steel plate that fit nicely on the lower edge of the liner and connected this one to a sliding hammer. Was the able to get out the two others without making any marks/damage to the liners.
All the parts cleaned up in a diesel bath and visually inspected. No obvious damage/wear seen, so all this will go right back into the block with shims and fresh hylomar.