Your doing some fantastic work on the 914, which is still my favourite Porsche. In the UK it was always called the VW-Porsche, where as a race marshall had seen the 914-6 race in the '70's.
I've recently worked on two of these kits but the poor quality has made me put them both back in their boxes. I've done as you have, beefing up all of the chassis, rebuilding the suspension numerous times as one wheel is always off the ground, and one still is so I've put them away for the time being.
I might get them out again after the seeing the great work your doing.
I look forward to seeing the finished car!