HDB as investment?

Hi Guys, I’m looking to buy a HDB as an investment. Would appreciate some help as I myself am not Singaporean. However my wife and our 2 kids are so I believe we are eligible. I have some basic knowledge of the Singapore market.

Here’s some info about us:

Both under 35 y/o

Looking to BTO (I believe this is where we have to queue/put our names for a ‘chance’ to buy a new HDB)

We have no CPF

Have roughly 60k SGD savings

Want to rent out in the future

Questions:

Is our savings sufficient?

Bank Loan vs HDB loan – I think as we do not have 20% deposit, we have to have a HDB loan, right?

Bank loans – do they offer a loan if all our income is earned overseas?

on HDB loans – why would people want a HDB loan when interest is 1% cheaper usually on bank loans? Is it because of greater deposit required?

Which BTO areas are good? (I want really close to MTR station)

4/5 bedrooms better as investment?

if I complete all my paperwork tonight, is there a long lead time for new HDB units to be built? i.e. Can’t buy one within the next 3 – 6 months?

Any helpful webpages/resources available?

Would appreciate any help you can provide, its hard to understand the intricacies of another country’s market when you’re not in the country.