I just want to point out that if you’re getting a HDB BTO with a HDB concessionary loan then you will be required to have Home Protection Scheme coverage, which is a form of term life insurance. HPS is term to age 65 (or the end of the loan, whichever comes first), and it pays off your remaining share of the mortgage payments. If your share is 100% (homemaker spouse) then it pays off the whole mortgage if you were to predecease her (or qualify for a TPD claim). Take that coverage into account in calculating how much term life insurance you need, and also the DPS and the bit of life insurance with NTUC membership if you have either/both.
The TPD coverage comes with the term life insurance, bundled, so that’s easy. I would line this up at least no later than actively trying to conceive a child since the child will clearly be dependent on you (and your surviving spouse), above your HPS coverage assuming you have that. You can easily get quotations on direct purchase term life insurance at Comparefirst.sg. Tokio Marine, for example, is pricing $200,000 of direct purchase term life insurance (with TPD coverage) at $210/year (guaranteed level premium) for a nonsmoking male at your age.
DII ranks well ahead of CI and ECI in importance. Aviva would currently charge $430.37/year for $3,000/month of DII coverage assuming a low risk occupation, after their 35% premium discount.
You should probably also consider CareShield Life when it opens in mid-2021. I think you’ll be auto enrolled in CSL at your age, actually, although you can cancel CSL if you insist. I wouldn’t.
Age 65 generally works best.
The insurance carriers are going to want to understand the kidney stones, as Moejoseph pointed out.
Any inclination toward getting an Integrated Shield plan (Great Eastern SupremeHealth B Plus for example), if you can get one? If you do get one it’ll probably exclude kidney-related care, except to MediShield Life coverage levels.