It takes as long as it takes. I've done figures for GW's Inquisitor in less than an hour. On the other hand, I have this Steamjack for Privateer's Warmachine that's been waiting for me to finish it for the last six months...
I was paging through the new Pendragon and the new campaign recently.
Is it just me, or are those two books - if you put them together - the same as my old edition of Pendragon?