No, I have not lost the enthusiasm at all. It's just a constant battle of priorities.
I have managed, with lots of help from my 14 year old, gotten the engine out, disassembled, honed and cleaned very well this time. It's back in the car and running clean with the new rings seated nicely!
More recently, with the motor all good, I have been working through tuning the carbs, finishing the airbox etc.
Pictures are always good...