I don't think you will get many responses to your post to be honest, you need to do a bit of research yourself first, if you go onto the Adultwork website you can search for girls in Basildon and even put your requirements in 30min / £60 in the search facility.
When you find a few girls you like the look of post the links here and fellow punters will give you there honest opinion, but you need to do a bit of legwork first as we have no idea what you like.
As a first timer you may have questions to ask, if your genuine punters on this site will help you, but remember to share your experiences.
Happy punting.