Assuming a typical SFR around 2000 sqft in north county, in a worst case scenario it would cost about 30-40K to replace everything.

a/c, heating, minor electrical upgrades, plywood cabinets, granite kitchen, bedrosians porcelain/12mm laminate flooring, $400 toilets, water efficient fixtures, water heater, painting, insulation, minimal low maintenance landscaping. Another assumption is the roof is intact, and there is no additional plumbing or duct work for the heating/cooling units.

Here are the caveats in the pricing – some of the work needs to be done by you, tons of research to find the materials, right contractors to do your flooring, and other installation. It is possible to remodel the house for the costs above, by doing some self work, and trading instead for above mid-high quality name brand materials. If the remodeling will be completely hands off then the costs can be higher.

If the intent is to keep the property as rental, my suggestion would be to get the best materials one can afford for the budget. Good luck with your project.