Removing / Replacing Spiral Staircase

[BoudiccasHare]

Has anyone had a spiral staircase removed and replaced with a conventional staircase?
What was the cost? Was it a major faff to get done?

Have you got a picture of it all finished? Were looking to do something similar in our house and we have the exact same floorplan. Thanks :)

@BoudiccasHare

Thanks for all the info, posts and suggestions!

We went to see the property again yesterday with someone we hope to employ to sort the stairs. He said that it's perfectly doable to put a staircase in, and marked out how much of the room we'd lose which didn't actually look like too much, given that we will have either a small space under the stairs or storage instead. I am considering leaving the stairs open but boxing them underneath as there isn't much storage space in the house currently.
He had also suggested creating a very small turn at the top of the stairs so you walk up facing the wall, and then turn to the left to steps into the landing, so we will gain more landing space upstairs (apparently) and won't lose any bedroom space. It'll also be cheaper than we anticipated which I am really pleased about.

I know it's naff but I really do not like the staircase and I'd much rather lose the space than live with it.

Now I just need to decide whether to box all of the underside of the stairs or leave some open and box a small cupboard type space up.

Yes that’s the type of staircase we have. We have about a room’s worth of landing space upstairs and have put in reading nook there.

If you have enough space try getting a utility room and downstairs toilet near the stairs. We did this - didn’t take much space at all and added value