80k in Denver requires careful budgeting. Rent will likely be your biggest expense, and you'll need to look outside of downtown for affordable options. Factor in transportation costs (car, public transit, or bike), utilities, groceries, and pet expenses. Eating out and entertainment will need to be limited. It's doable, but expect to make trade-offs. You should really create a sample budget with realistic numbers for your lifestyle to determine if it's feasible for you.