Gorgeous bike; nice build.
I had actually ordered myself a Roadini, but switched directions and got a new Sam, instead. Part of me lusts after that Roadini, as I do love the look & feel of a more "pure" and "fast" road bike. Like yourself, however, I do like to carry a few things on my rides, and do so comfortably (without stuffing jersey pockets to over-flowing, or having to cram things into some idiotically-tiny saddlebag.
I thought that to be a pretty slick little system. I really like the way it gives you a nifty little front rack, yet maintains the very clean, road-oriented lines of the bike. I mean: say what you will, but there's something about the look of an unfettered fork that looks really nice. Anyway, combine the rack with a stem-mounted decaleur, you could mount a reasonably-sized handlebar bag -- which, to me, is almost always preferable to a saddlebag.
From there, you can use any number of reasonably-sized saddlebags. The Carradice Barley, at 7 liters, is a great option. That, paired with a 10-ish liter handlebar bag, and you can very easily do credit-card touring.
You could also mount the Riv-exclusive Nitto mini rear rack: the bike has the properly-positioned eyelets for it. Of course, it being a "road" bike, it's more fun to keep it clear of larger racks -- but it's an option, and if you used wing-bolt fasteners, it would be easy on/off.
Best of luck :-)