Two more questions about moving GW8 from OES-NW to OES11SP1

Existing system:
Main domain with the system's single PO in the main context; GW8 running on NW65SP8.
Secondary domain running the GWIA, also in the main context; GW8 running on NW65SP8.
Secondary domain running the GW8 WebAccess, in GroupWise OU; running on OES11SP1
Secondary domain running a GroupWise 7 WebAccess, in another OU; GW7 running on NW65SP8.

I'm looking the process of moving my GW8 system running on NW6.5SP8 to OES11SP1 and I'd like to accomplish a couple of other things, although not necessarily at the same time:
1) Moving the GW system to a different OU.
Is the grafting process outlined in TID's 2944422 and 7003485 still the best mechanism?

2) Clustering the GroupWise system
If I ultimately want to move my GW to a Linux Cluster, it looks like it would make more sense to just move to a cluster now, as opposed to moving from NetWare to Linux and then from single Linux to a cluster.
Is there anything obvious I'm not thinking about relative to that?