Hi Alan , the drz is a good green lane bike ,good on the road sections ,plenty of steady usable power and pretty bomb proof BUT quite a hefty beast ,that allows you to plod through most slop ,almost un stoppable ,very little maintainance apart from your normal bits and bobs . If you are in the market try to find a drz but the E model as the E stands for Enduro ,...plastic tank ,different carb ,no rear footrests ,probably slightly better tuned etc ,have a look on the lap top thingy as you can find the differences .Mine was spot on until someone wanted it more than me and it dissapeard on night out of the garage .
One bike to consider is the KTM 400 ,cracking bike for the lanes.....same as above but two thirds the weight !
good searching Julian East Yorks trf