Please, dont go for Activa in 2nd hand. The first owner could have tried to smoothen the suspension fork for smoother ride with ASC people or some roadside mechanics and it could have got damaged, my uncle once bought a 2011 Activa in 2014, he changed the whole front suspension system.
You could check for Scooty Pep+, Wego, Access, Swish, Aviator or any scooters that doesnt have the linking arm type suspension.