The cockpit looks good. My batteries are all in the very nose as well and the lead I added is in the very nose. I put as much equipment in the nose as I could. I did use an AMT pegasus which is a heavier engine but it sits pretty close to the CG. All of the accessories are ahead of the CG. I would do a quick balance check early before spending too much time trying to save weight that you may end up just adding back to balance it in the end