Hey Ori,
and welcome back here.
So, to sum your request up, you'd like someone to draw a detailed, large city plus the directly surrounding area, sporting partially vastly different biomes, correct?
Not going to lie here, and I don't mean to come across as rude, but that's a commission request for someone with probably five times your stated maximum budget at their disposal, and that's just because it would be non-commercial.
Maybe there are others who would try their hands at it for €450 or even €350, but you're not going to get a map of that size, scope and quality for €120. Just not going to happen, sorry.