Cost of a standard bathroom with installation

[Parkingt111]

I know prices can vary but if on a tight budget what would you say is the standard price for a simple bathroom including installation?

Our bathroom which will be: bath, over head shower, fitted shower screen, built in cupboards with toilet and sink unit and a plumbed towel rail, will cost around £3.8k including removing old suite and tiles and fitting everything.
We will be tiling ourselves so add the cost of tiles and a few days to do it.

Will you do any of it yourself?

We removed the tiles ourself

We have had a builder remove our suite and replace with new = £600

Suite consisting of toilet, sink, taps, shower, shower tray, enclosure = £850

Tiling done by my DP he's not a professional but is easy enough to do yourself = £200 for materials