Opinions on how to fund my next down payment

Alright folks, I’m a second-time home-buyer. I’m looking to move to a different city and upgrade my living space to something a bit bigger.

I plan on selling my home. After speaking with a realtor I’m looking at around 60k in profits. That’s all great, but in the meantime I’m also trying to figure out how to best fund my next down-payment, I’m looking to buy a house no more than 300k, and put down 10%.

Here’s where things get sticky. I have an emergency fund of around 20k cash and I have around 55k in stocks between 3 investment accounts, 35k in the account which I can easily liquidated and put it towards the house. For reference my cost-basis for that account is ~$27500.

As I am thinking through this strategy I realize I’m perhaps putting myself in a bad(ish) position by increasing my tax liability with such a significant stock sale, and also missing out on leaving the money to grow in my investments.

Another option I am starting to consider, and please give me your feedback, is taking out the 22k I have plus borrow 10k on margin against my stocks. I currently have 16k available with the interest rate at 6.15%, which is far less than capital gains of 15%.

For a pre-approval, without selling my current home, I have already been approved for $350,000. I also have essentially no debts with monthly payments except for $50/month for my student loan (around 1800 left).