So, just an update, i ordered a bridesmaids dress from a lovely lady on ebay, exactly what i was looking for, in cadbury purple, pic below
so it arrived and quality was excellent, one of my 5 bridesmaids came over and tried it on, sent pic to my mum who wasnt keen, but sent same pic to my other maids most of who like it, so after thinking about scrapping the idea, and starting all over again...i have decided to sod it and go with ordering the other 4...pic wont let me upload of her in it, so will add pic when i can