I may be able to help.. I have a '01 BMW R1150RT with tank bag and luggage, currently located 20km west of Dublin city, and since I'm currently located in London (different country, for the geographically / politically challenged), I only use the bike on the occasional weekend, when I fly home.
If this is of interest, then let me know.. I'm sure we can arrange something at minimal expense to everyone involved.
I'm currently in the planning stages for a summer trip myself, but I haven't decided where I'm going.. possibly US, SA, or southern Europe..
I'm still looking to buy a KLR650 near London, and if anyone knows of one, that would be simply fantastico.