can anybody help? I am in Australia and would like to put some larger wheels and tyres on my escos.

The choice here is limited. But i have found some i like they come in 8.5 inch wide by 19 inch dia the ET is +28. My question,s are what size tyres would be the best fit? could i put 245/35/19 on and would i have to put concentric spacers on it, would they fill the arches fully , at the moment it is std ride hight but later i would like to lower it about 20mm. I dont want to buy them and waist my money if the wont fit. these are them photoshopped so i could have an idea on what they would look like.