For any such thing I'd recommend a trip to your local bike shop as your first stop. That old 10 speed might not be up to the task, or it might. Getting parts might be more expensive than you can afford. You might consider doing what I've done: Get an early 90's or late 80's mountain bike, put touring style tires on it, appropriate racks (my Specialized Rock Hopper, late 80's, has braze-ons for everything) and call it good. I spent less than $200 total on the deal. I use mine for commuting but I would have no problem hopping on this bike for a few days on the road, if my legs could handle it