So, after an extended period of procrastination I settled on the final position of the conveyor pit - right over a strengthening rib under the baseboard LOL

Nothing now for it I got the 2 layers of 3mm foam core stuck down to bring the level up to that of the boxfile

and then using some left over View Glue I stuck down the track plan

It was important to get this down as the positioning of the dual gauge pointwork is critical to the plan.

Next steps are to start cutting holes - a nice slot in the backscene behind the boxfile so I can marshall narrow gauge trains - the plan is for tipper wagons to trundle out from behind the boxfile to then be shunted over the conveyor pit etc. Oh yes, the hole for the conveyor pit along with removing some of the strengthening rib. One more hole will be needed for the fiddle yard exit, but as I've not yet decided how high this will be it will have to wait until terraforming has been done ......