All done, still have ground and heatsink planes to add but this is the almost-finished result
Man I love having those extra layers, I remember how great it was going from 1 to 2 layers all those years ago and this is a similar revelation, with 4 layers and SMDs on both sides you really can pack 10 pounds of sh1t into a 5-pound bag.
Now I just have to convince 'er indoors to let me get it fabbed 
Rob