Can we please get an estimate on CVT fluid change, alternator replacement, starter motor replacement, water pump replacement, etc?

Hi, thank you very much for informing and enlightening us on our vehicle listed above SV models, $10,000.00 engine replacement cost, $5,000.00 CVT transmission replacement cost, $1,500.00 electric power steering cost, and $1,000.00 electric fuel pump module cost. We are going to keep our vehicle because the cost of a new 2023 Nissan Versa is over $22,000 dollars and so we can't afford a new Nissan Versa, and keeping the one we have means that we are going to run into those repairs one at a time. So, how much does it cost to change the CVT fluid, and does it involve disconnecting the cooler lines and connecting them to a machine? How much does it cost to replace the alternator and does replacing the alternator include its voltage regulator and recharging the battery? How much does it cost to replace the starter motor and does the upper radiator hose interfere with access to the starter motor necessitating an anti-freeze change? How much does it cost to replace the water pump, and does it include the water pump gasket, gasket sealant, and anti-freeze change? How much does it cost to replace the radiator and finally how much does it cost to replace the coolant thermostat and is it recommended that you also replace the upper and lower radiator hoses when you replace the radiator? We are doing three month interval oil changes at Walmart with bulk synthetic oil and can that frequent maintenance stave off engine replacement for 300,000 miles as you told me earlier. Thank you in advance for informing and updating me on the costs of keeping our vehicle with these costs being cheaper than the $22,000.00 sticker price of a new vehicle. Truly yours, written by Alex Stathas