you have 2 (two) weeks to practice, WITH it loaded (with all you're taking)! see how it (and you) feels and handles.

is this your first tour? 3k- self-contained? (pretty big spoonfull!) or is it sag supported, with group?

the gearing may be an issue for you as well. 52-42-30 front and 12-25 rear may prove even more of a challenge in those hills.

how much does the trailer weigh, unloaded? add that to your total.

tires look like a good choice! don't forget your crank remover, cassette puller, extra spokes, and a spoke wrench with your other tools! i tape the spokes to my down-tube, hope to never use them, but you never know.

keep us informed,

tg