Costabrava Skies

Hi Everybody, This is the first time I have submited a question on this or any other astro forum. I plan to purchase a Skywatcher Esprit ED 100 with the aim to start getting into DSO imaging. Until now I have just done planetary and lunar imaging with my Skywatcher 12 " goto dob. I live in Spain and have pretty good seeing conditions. I know that I will need guide scope etc. but what I am not sure about is what equatorial mount to buy. I was planning to purchase a Skywatcher HEQ6 goto mount as by my calculations it should be more than enough to manage the payload but my local telescope shop are suggesting that it might not be enough and that I should go for the NEQ 6. This bumps up my budget which is already over the limit I had set myself. The ccd camara I will using will be my ZWO ASI 224 colour. I know it is not really designed for DSO imaging but will buy a better dedicated camara when I can afford it. Any advice regarding whether or not the Skywatcher HEQ6 mount is suffient would be very much appreciated. Many thanks to to yoi all. paul