I'll second Betasure for KK as a home. Since you will not be working in Malaysia, you can apply for MM2H program (Malaysia My 2nd home); Basically you can buy a house, buy a car locally with no tax, get a 10 year visa renewable.
Check the info on
www.alloexpat.com.my U will be able to get all the relevant info about the program and other topics applicable to living in Malaysia
I ve been here 6 years, but working, so using work permits instead. Pm me if you need more info
Cheers
WLM