james-wrx

Im in the middle of a head gasket job and have notice I have a leaking breather pipe on top of the block, on further inspection it has a small split in it (this explains the oil leak lol) where is the best place to get a replacement?
It's a hard pipe but would it be possible to replace it with a soft one, I can get these anywhere to be fair so it would be easier but I can only assume the hard pipes are that way so they done collapse or anyhting?
Any help greatly appreciated!

James