I've just paid 33K but I also had to have my place rotated 45 degrees which costs a bit more than the average slide and raise. If only I or my draftsman was aware of the increased cost in rotation I would've kept it on the same plane.
You could be under 50K if you are only limiting the building costs to the disconnection/reconnection.
I'm paying 50K to the builder (on top of house slide/raise). this includes disconnection/reconnection, removal of existing piers, concreting posts, concrete to car space and laundry, fit out of laundry, double garage doors, gravel to remainder of the ground space under the house, adding new stairs to front and back, excavation of new driveway including crossover, concrete to cross over/council space and gravel to driveway, and timber battens to underside of house and the addition of a gate as I am not fitting out the whole of the space.
I'm sure if I shopped around more I would've gotten it all cheaper but doing this remotely has its challenges.
Also factor in any temporary electrical pole costs if needed and any asbestos removal. The post war house I had raised had a tack-on laundry that required removal.