Yes it's possible to use standard shocks. A mate of mine has had his Corolla (not ZZE) lowered on the same KYB shock absorbers for several years now with no issues.
I've got a set of Lovells springs for ZZE which will be available in a couple of weeks if you're interested? Also got KYB Excel-G shock absorbers for ZZE123 Sportivo (I think the only difference is the brake line mount). Less than 10,000kms on the lot. Flick me a message if you're interested and I'm sure we can work something out.