Personally I think that getting it done in a different colour to the colour it is at the min is a total waste of money, resprays knock loads off of the re sale value & unless you go for a proper respray its not worth it.
Unless you planning on keeping it for a while or getting it seriuosly modified (ala show car) its not worth it imo.
I saw a really nice green mk3 fiesta down Basildon once - when she opened the door the whole inside edge was grey
Also for a desent job you'd be looking at about 2k.
If it were me i'd just get the bonnet & other bits done & leave it as it is.