Drop me a PM with your details. I have a Level 1 course running in April. However it is full already, pending the last candidate to confirm. I also do mentoring days for pre level one on one of my main leases in West Sussex.
The next local British Deer Society one is Bardwell (Suffolk) at the end of April. If you want assessment only, they are currently doing a special on the Ultimate Deer Data package plus 5 assessments for only £185.
Details here: http://www.bds.org.uk/deer_stalking_certificate_1.html
Hope this helps.
There are BASC sponsored DSC 1 courses, Pre DSC 1, FAT, IDC and DSC 2 witnessed stalks available at Tunbridge Wells, the guy running the courses is Andy Papworth. Did my DSC 1 with him and can definitely say a top guy.
Location is just south of Tun Wells, only 45 mins from Dartford crossing in good traffic.
Let me know if you want any contact details.