Mixing jardini or pearl aro with any tankmate is a gamble they have relentless aggression , another aro would eventually get battered unless you got very lucky and got a pair of jardini that live in harmony (couple of members have pulled it off but its rare and an expensive risk imo)
I'm from the UK where about are you based ? Jardini are quite pricey in the UK these days an 8cm one you'd be looking to pay between £70-100 for from shops possibly slightly cheaper online but thats a risk in itself as you don't get to see or choose your fish .