Hi
Look into KMA . They have a few log's that may fit the bill. 50500s, and 50500. Both are tri band (6-2-70cm)
Both will look like a TV install.
They have a few reviews on this site. I would think the performace to be on rar with a three element mono for each band used.
The other alternative would be a omni loop, for even a smaller foot print. Check the reviews on those as well.
Good luck
73