Glad to see you are still pursuing this project Warren, and yes, real life issues do get in the way of modelling for all of us to some degree and it seems worse as age progresses. (Ask me how I am so certain of this!?) The best news though, as Brad, Sandy, and Nigel point out is that we have this wonderful hobby to provide a measure of optimism and relief, no matter how fleeting and keep us going through our trials.
Keep fighting the good fight; trust me, the battle to stay the depletion of useable body parts would be a lot worse if we didn't have this diversion which I am certain you know. I am looking forward to seeing these three little beauties completed down the road!
Cheers,
Lance