I don't know how you all are spending money that needs paper receipts. 99% of my expenditures are either ACH or CC autopay's to utilities, banks or other regular things, or paid by credit card to Lowes or HD who email receipts to my 'landlord' email with the PO (unit or property) I entered at checkout.

One to deposit the rent checks and to write checks from for expenses (repairs, capital expenditures, utilities).  

I handle all banking and mortgage payments and approve all expenditures.

Would it be fair to allocate these items as capital expenditures?  

To answer your question, you can start taking money out when you are done growing and have an adequate reserve fund for unexpected and expected capital expenditures/operating funds.

If the property requires a lot of capital expenditures, then yes the bank is going to want to see that the money is there to execute such a plan.Also, on a larger building the bank will want to see a track record from you.

Are there any big ticket capital expenditures coming up?

I think it would be a foolish capital expenditure to make here.  

From that perspective, I would recommend estimating the total capex over the long-term and then account for it as a pro-rated monthly expense.For example, I might have a house where I estimate the following capex expenditures:- New Roof (Every 20 Years): $4000- New HVAC (Every 20 Years):  $4000- New Water Heater (Every 8 Years):  $800- New Exterior Paint and Siding Repairs (Every 20 Years):  $3000- Plumbing Upgrades (Every 40 Years):  $5000- Electrical Upgrades (Every 40 Years):  $6000- Appliances (Every 10 Years):  $2000Based on those numbers, you can expect to pay about $24,000 every 20 years in capex costs. 

Never invest in property because you think it will appreciate, unless you are also getting enough cash flow from the property to cover all expenses, debt service, reserves, capital expenditures, and some profit for you.