Artificial earth & 10 meter multi mode

I'm looking for a artificial earth, partly because we have that horrible multiple earthing, partly because we operate from the 1st floor & partly because at the School due to being in a listed building & H & S considerations etc etc, it would help.
so if anyone has a unused artificial earth I'm looking to buy one.
I'm also half looking for a 10 meter radio. not a CB, but a proper amateur radio, preferably with repeater shift, but USB & FM are the main requirements, anything else is an advantage.