>>1864245I did a full week with rear rack and bags, Plus handlebar bag. Should be just fine, but doing more you probably want more bags just so your bike is less shitty to ride/more balanced
You don't ever NEED front panniers, if you don't want them. Rear bags, strap shit to rack, frame bag, gas tank bag, and handlebar bag. Reckon you could buy the last 3 used for pretty cheap.