our bathroom needs a refit. i want to rip out the bath and put a shower in but move the showert so it covers the back wall with the shower coming out of the left hand side wall. i also want to move the sink so it is on the left hand side wall next the shower. the shower will have a frosted glass screen/door covering the width of the room and the floor of the shower will be tiled with a drain hole.
now, my questions are:
1. is this possible?
2. will it be expensive for the labour?
3. do i need any permits?

australians only please

http://i373.photobucket.com/albums/oo177/l25067101/015.jpg

I have a large master bathroom about 12 x12ft.
What should I upgrade or change for the best increase in resale value.
Right now have big garden tub (fiberglass) and separate shower unit( fiberglass with glass door), vinyl floor, a 9 foot long older double vanity with cabinets below(MDF not wood) put in by contractor who build the house.
I will definitely need to replace the shower and the vinyl floor because they need to be repaired.

Do you think replacing the vinyl with ceramic tile floor is a better idea, or keeping it vinyl and upgrading the vanity/cabinets. The cabinets don't look bad, but are a bit outdated and match the ones in the kitchen and half baths. The similar homes in my area are selling for about 160K. I bought this one for 130K so I don't have much room to spend.
the ceramic tile i've seen is textured these days so no more slipping problem.
I will have to replace the old pre-fab shower unit. so now i'm trying to decide if i should replace with another pre-fab unit which would be about 00 plus $ for installation OR tile the walls after i take out the old prefab unit. the good thing about the old prefab unit was it had a nice bench.