My GW was running a 2 month competition - pick something or someone from a codex that doesn't have an official model, build it over October and Paint it over November.
Due to being away for a week and a bit and being busy I decided not to enter, then on Wednesday I popped in for a game and got asked what I was building - at which point I thought 'I've still got 2 days, why not?'
2 days - 2 mornings working - 1 evening busy = 2 afternoons + 1 evening, it'll be fine
2 days - 2 mornings working - 1 evening busy - 1 afternoon working - 0.5 afternoon working = a bit tight
Any way a well stocked bitz box and half an idea that had been in my head since I got the codex equals