go for it. lots to learn by working with curved material. I laid out this little cruck using snaplines and if I ever get the other end done, would like to try scribe...

Brunskill's book "timber building in britain" has lots of cruck photos... search timberframing U.K. and you will see websites with crucks... here is one:
http://www.crucks.eclipse.co.uk/crucks800/index.html