Stick with it!! bit by bit it will come together.
I've been watching the build for ages and to be honest, your build is what made me go the same way, purely by chance, I found a 240z in a very similar colour, I'm just about to install the new RB30/T51spl and ditch the ugly bonnet, I'll let you know how it goes, might motivate you some more.
Good luck .........Rob