waste/drain for a bath tub and floor waste

We had the same issue when we put a new bathtub in - the plughole was in the middle of the new bath and the old bath had the waste up one end. You can use 90 degree bends and a length of pipe to match up with your new bath. Only problem you may have (as we had) is that the bathtub must sit up higher from the ground to accommodate the pipework. Hope this helps.

Looks like this is what I will have to do. Humm now how to get the bath up enough and not have to cut into the wall to seal it of.

Thirls - start cutting . I have just had to do it. Had considered not recessing as I think the tiles look better not overlapping the rim ....and how much water do you get that high (excluding kids ) I have spoken to plumbers/tilers who say that it is an area where a concession is often made when remodeling due to hassles of lining things up etc.

How about a 90 degree angle connectors out of the floor and under bath waste with a 40mm pipe running under bath with the slightest of fall - it could be within your bath mortar bed if needed. Just a thought! The Plumdingers may also help, I have just used the smallest type (round) because connecting all the correct pipe pieces was much to high. Compare prices at shops - not sure if due to make or mark-up. Local large hardware chain sold them at $67, Reece $96, Tradelink $45.