No issue, just declare and pay 7% GST. You can check out the dimension from www.kdk.com.my. I bought 1 x V60k, 2 x K11 (New model), 1 x KDK Wall fan and 1 x KDK desk fan. No problem fitting in Vios in one trip. Approved KDK installer?? There is no such certification lah.. It is depending on the installer skill. PM me for more details.