Set aside funds for self insured. You have to be persistent in topping up that fund.
1 month set aside 1k,  yearly returns averaged 6% ( conservatively)
1 year = 12k
10 yrs = 120k + app roi 40k = 160k

If got medical need, you only hv 160k to use.

12k per annum insurance premium can get his much medical coverage?

Go for self insured plan if you are sure you will not need medical spendings of more than 150k in the next 10 yrs?

In that 10 yrs, if you had made medical spending of 150k, the money from your self insured plan will hv to start from 0. ...that is the time you may need more medical spendings as you are now 10 yrs older, or needed more medical follow ups.

Also, you will need to have to come out with money for deposit during admission and discharge....well unless your CC has high limits then that is not a concern