Average Maintenance Costs?

My experience has been $.15/mile over 80k miles in 10 years of ownership. That includes major mods like headers, front end repair,autopark repair,HD springs,tires 2 sets of batteries etc. Roughly 1/2 for major mods and major repairs and 1/2 for maintenance like oil chgs every 5000 miles. 3 transmission changes, 2 rear end changes, 3 brake fluid changes, 5 radiator flushes and refills, HWH jacks,refer, and WH repairs,every nut and raw material for minor repairs. $6000 for mods and $6000 for general maintenance. Most of the work I did myself with a lot of help from people on this forum. From my experience I would buy slightly older and less money and saved $10k for repairs and mods.