Depending on the size of the down payment, we could take on a property that needs a bit of work.I have been using the BiggerPockets calculator to analyze deals though I'm having a hard time finding any that have positive cash flow in the first few years. 

When thinking about the cost of the property, how much rent to charge, how much money to put down at first, analyzing cash flow, and hiring someone to manage the property professionally, a building with four homes could give better cash flow and spread out risks more.Good luck!

-If you have 10k for a downpayment it's good that you are thinking about having reserves, but you also have to think about closing cost, if you are worried about not having tenants having a couple months' rent would be ideal-If you are new to real estate, start reading books, listening to podcasts, analyze deals, learn the tenant screening process, property management, see how you could mitigate the risk on the house hack, find an exit strategy, but most of all have patience.

I was able to build a years worth of data so that I could analyze the acceptable net % based on list price, number of times reduced and days on market.  

Here's a guide that describes what good cash flow looks like and how to analyze a property.https://www.biggerpockets.com/blog/rental-property-cash-flow...

He has a podcast, newsletter, and also offers monthly LP Cohort courses where you analyze 4 deals from different asset classes over 4 weeks.

I can analyze this deal in further detail if you want to send me the details.

With that, (and regarding your Question #2) I think your expense line items and numbers will run very similar to what can be found in this BP blog: https://www.biggerpockets.com/member-blogs/3915/27972-analyzing-the-financials-of-a-self-storage-facilityYou'll have larger units, which typically means longer length of stay and lower turnover so your management/payroll expense could be lower.

Quote from @Timmy Chen: You have to analyze the numbers to see if it makes sense.

This is how I analyze risks and make risk-adjusted return decisions:Identify the Risk: Vacant units could be a sign of high vacancy rates.