Sounds just like a house we lived in, only the carpet was green too!, it was like that when we moved into it 18yrs ago now, I always hated it with a passion, we took the carpet out as soon as we moved in (can't stand carpet in bathrooms) but left the rest as it was avacado suite, peach tiles, wood fake panelling on ceiling - yes it was delightful - anyway after 12yrs and a baby decided we needed to move, I knew the bathroom was well dodgy but the rest of the place was re-done from top to bottom including kitchen, new roof, heating, dpc, replastered decorated etc, so thought we might get away with it, anyway estate agents came round and lots of positive, wow, this is lovely, very nice until got to the bathroom said we didnt have a hope in hell of selling with it the way it was, people expect white, clean lines, new looking etc and they don't want the agro or cost of replacing it.
Sooo went to B&Q got the cheapest white suite they had about £170 got a plumber friend to fit it £100 tiled over the tiles in white dead cheap think they cost about £60 with grout and spaces etc (did that myself) and ripped the stylish panelling of the ceiling, quick paint job and hey presto, didn't want to moove . If you can I would definately change it, agents all said it added about £5K to our house and sold it on 2nd viewing at full price, it was well worth it for us so if your'e just thinkng about moving you could maybe do it in bits.