Had to put a max £ on it as only play on the odd occasion .Looking for a electronic woodland marker that will take the knocks ,mud and water.I know for that bit more I will open up my options but I have to draw a line somewhere.
if you wanted new you could look at eclipse etha / proto rize, as for second hand, that budget should get you something alright for what you want, the best supported markers over here at the moment are the planet eclipse ones, so something like a geo of some description would work well for you.