@leejsmith -> Nice work! I've just stumbled accross this thread and noticed that we you almost identical equipment
Have you got it finished yet mate?
P.S. I found that one can sucessfuly use endmills with this type of equipment and if you go slowly and have your x-vice assmebled correctly (and one axis blocked, also it looks like a turning table could serve you well) then you can obtain a very nice straight cuts with flat bottoms. I got my bits endmills from rswww - they are quite expensive unfortunately
Anyways, keep up your good work!