what's your total load weight Alex. sounds to me like the EQ6 will be pushing it with all that on it.
1. Dew heaters for you refractor and camera lenses.
2. somthing like the manfrotto ball head mounts for piggy back work. (manfrotto 486 RC2
http://www.madsens.com.au/new/manfro...mf_tripodheads but you can get them cheaper - around $100 )