However require lower capital expenditures because you're responsible for fixing less stuff.3.

I am actually rather impressed with not only what you've accomplished but your tenacity as well given the circumstances in your country.Given the requirements you've outlined in your post basically putting out capital expenditures of $15-$20k for furnishings just to get $700-$1000 in rent, have you considered attempting to sell these off and holding the money for a few months when your purchasing power would be increased?

No taxes in Alaska.3000 - 1146 - 100/mo for insurance (just a guess) = 1754.Split that in half for 50% rule, in regards to capital expenditures: 1754 / 2 = 8776000 / 877 = 6.7 = 7 UnitsSo you will need 7 homes of about that size (doable, but takes time).

Alternatively, a real-estate professional has given me some estimated numbers for taxes, for a revised IRR (which is lower).I also understand that forecasting exact expenditures + their timing is hard yet can impact the IRR's accuracy.

To fall under the Safe Harbor for Small Taxpayers which allows you to currently deduct repair and capital expenditures in the current year, you cannot spend more than $1,600 (2% of the unadjusted basis) in repairs and improvements. 

Thats about $340 in costs per unit per month give or take... am I wrong to think that is nuts and it has to be some sort of capital expenditure.

There's a federal tax incentive:A taxpayer may claim a credit of 30% of qualified expenditures for a solar system that serves a residence located in the United States that is owned and used as a residence by the taxpayer.The LADWP (Los Angeles Department of Water & Power) also offers an incentive which comes in the form of a subsidy for the electricity you do get from the grid.

If so, how do you feel it compares to the standard percentages for planned repairs and/or capital expenditures? 

Are you including capital expenditures, management, utilities and garbage, etc (if applicable)?

You didn't think about management, takes, capital expenditures like a new roof, tree roots cracking the foundation, replacing HVAC, vacancy, or evictions.