The 6N Polo GTi has the same front arb, but it's the lack of rear bar that's the problem. You don't need to source a GTi rear beam. You could weld a 25mm tube into your beam or find a whitelines.
I have Bilstein B6's all round and Fabia VRS lowered rear springs. The back end sits at the standard height. Haven't found suitable uprated front springs yet. There's loads of clearance to the sump. I grew up road rallying so like my cars to tolerant of crap roads.