The first thing I would do is make sure your saddle is level. Put a broomstick on top of your saddle and parallel to the top tube. Put a level on the ground underneath your bike, and note where the bubble is. Then put the level on the broomstick, and adjust the tilt of your saddle until the bubble is in the same place as it was when the level was on the ground.
Next, you probably need to raise your handlebars to bring them closer to your body. If you have room, put another spacer under the stem. If you don't have anymore room for a spacer, then you need to get a shorter stem. Make sure the stem has the same angle as your current stem, but is shorter in length. That will reduce the reach to the bars. However, a shorter stem with the same angle will also lower the bars slightly, so you might want to get a stem with more angle(i.e. it points upwards towards the sky more).
Also, when you lay the broom along your saddle, how close to the broom is the top of your bars? For touring, you probably want the bars even with the saddle height or a little higher.
You can also shorten the reach to the bars by sliding the saddle forward on the rails--however, the *proper* position of the saddle is independent of the reach to the bars. You *should* position the saddle so that when the rightside pedal is forward and horizontal to the ground, the front of your knee is directly over the pedal spindle. You can check that by tying something heavy to a string, putting the string on the front of your knee and seeing where the string lines up with the center of the pedal spindle. If you don't use clipless pedals, then where your foot is placed on the pedal can vary, so you will have to guesstimate.
You can also shorten the reach to the bars slightly by getting a different set of handlebars. Different handlebars have different distances between the top of the bars and the curve of the bars.
For hand numbness, you can also double wrap the bars with bar tape for more cushion(which will also make the top of the bars a little higher), and wear gloves(which is a good idea anyway).
When you buy a bike, the bigger the frame you buy, the higher you can get the handlebars, but with bigger frames the top tube's are longer, so the reach to the bars is further away. Ufortunately, the Surly LHT's have seat tube angles that are too steep and top tubes that are too long for touring. Despite their geometry, they are the most often seen touring bikes on the road.