Welcome aboard!
Did you get the trailer new from Jurassic Cars (Dean)? If so, he should give you a good battery. My Panasonic is working pretty well so far.
I haven't enlarged the hole for the water pump; I didn't like the idea of submerging that thing anyhow and have been using the petcocks in back so far...
If you get over toward Georgia, give a holler. We camp all the time.
In fact, there will be a Conqueror convoy of sorts for Thanksgiving; come along if you'd like!
http://www.expeditionportal.com/forum/showthread.php?t=19541