thanks for the questions ozhanu.
The pannier racks has 2 fixings that fit to the original rear carrier. This means you do not have to have a topbox.
As with regards to the zega-alu panniers I am not too sure, but i will try and find out.
Before I decided to buy a big bike (and have restricted) I researched for months on the most reliable and obviously most suited for my own purposes. I looked on reviews and read about the KLE having the renowned GPZ500 engine. So far I've had not a single problem with the bike. It starts in any weather, after any period of time - first time. It's incredibly smooth and responsive, I don't have a single bad word to say about it. I use it nearly everyday and average 1000 miles a month.
My brother has a honda xl 650 transalp and we've both been quite some distances together. So far he has experienced no problems, with it being a honda its of a build quality that is trusted worldwide. The obvious differences between our bikes is the size. The KLE is slightly taller, thinner and lighter whereas the transalp is more expensive, heavier, has a larger fuel tank, wider seat, faster and has more available aftermarket accessories. But I chose the KLE over the Transalp because of the rugged look and it was alot more cheaper (which matters when your a student with minimal income).