Is this a new house OP, or just a place that you've refurbed?
Either way, I'd wait and get the cabinet put up and the tap sorted out before listing, as first impressions really DO count, and as someone else said, I'd be thinking if they're listing the place looking like that, what other botch jobs have been done, which would put me off viewing. As the saying goes, 'you don't get a second chance to make a first impression', so if you can't get the builders to pull their finger out and sort it quickly, then buy another tap, and either fit it yourself, or ring round the local plumbers to see if someone will fit it for you in between other jobs, as it really is a quick fix if you know what you're doing. Avoiding showing photos of bathrooms is also not a good idea, particularly if it's nice and new as this one is, as people are often influenced to buy, based on a property having a nice kitchen and bathrooms.
Finally, have you already signed with your agent, if so, and your agent is a good one, they will probably do a ring around of keen buyers, who are proceedable, telling them that the property will be available shortly, and that it would be a good idea to get in and view it before the pictures are launched. If they have anyone hot to trot, they'll come round and view, without even waiting to see pictures, in order to get ahead of the game.