Nicolas, You can tour on anything. I used my hardtail for my first short tours and it did very well with a rear rack and dual pattern tires meant for hard pack riding. The bar ends really helped reduce hand fatigue. The fork's dampening is fairly stiff to deal with 2-3 foot drop offs and that may've been a positive factor. You maybe able to find an out dated, but still perfectly functional suspension fork to install on your current bicycle.

If your handle bars are too wide, try cutting off 2.5 cm on each side.

Brad