Bigdaisy
Aswell as ASTAC Gloucester (Rudloe College) there is also BAe Cwmbran in Wales which offer similar privately funded ATC courses. The rates I have been looking into for a Basic ATC Couse, ADI Rating and accommodation inclusive at BAe Cwmbran totals at around the 25K mark.
Previous theoretical and practical experience such as having an Air Ground Radio /FISO licence I would say is highly recommended before even considering this route if you are a stranger to ATC!
Hope this helps.
