I don't reckon you're mad at all.
What's wrong with the Multi for travel?
I see you have the early two valve, air cooled model. I prefer it actually. I've ridden the new HOTTED up Testastreta Multi too ... it's Hella fast but I liked the original Multi more. Lighter feeling, more nimble, more fun for me ... and much easier/cheaper on maintenance than the Testa Multi.
Of course you didn't mention in any great detail where you'd like to go and what sort of roads you intend to travel. This makes a big difference.
17" tires/wheels aren't great off road or if going FAST on nasty, pot holed or rocky Pistes. But if riding mostly EU or N. America, no worries. Don't ever mistake your Multi for a Dual Sport .. it's not, but with some care and and careful route choice, I'd think you'd do fine.
A good riding buddy has a Multi and we've done many long group rides (long weekend or 4 or 5 day rides) We often cover 400 miles/day, back to back. His Multi has worked out great. No break downs or even a flat. But NONE of our rides have involved any serious off road. A few dirt roads, sure, no problem. But if things get rough, I'd be a bit careful with those wheels ... and a 17" street tire ain't much good in deep sand, ruts or mud either!
If you're doing mostly paved roads I'd fit hard bags. If not, then soft. Soft are lighter weight. I use Inner bags with my soft bags, never remove bags from bike. Much faster/easier upon arrival.
Also, think hard about camping .... and if you really intend to camp everywhere. Example: Most Latin American travel novices find out camping sucks in most of Latin America.
Only Chile and Argentina have good camping. Riders carry 20 kgs. of camping stuff for 20,000 kms ... and never (or rarely) use it. Hotels and Hostels are the way in that part of the world ... and in much of Asia as well.
I rode this big Multi S for a day ... but really preferred this :
Tiger and Multistrada take on California Sierra in late Fall. (Autumn to Ango-files)