Now it is in the repo. As it is an alpha test version, no WBAR or menu item added, but it comes with a freedesktop menu entry, so you will find it in Xfce4/LXDE menu. No any TC customization made, just a plain compilation and packing.
One important notice!!!
New PCManFM is using GVFS, a userspace virtual filesystem which is not available at the moment on TC, therefor many exciting features are not enabled. I will try to add GVFS to TC but it will take some time to create and most likely more to adjust properly. Anyhow, you can play with pcmanfm2 w/O GVFS.