I have a 2004 Ford focus zx3 and I'm wondering the cost of changing it to manual from automatic?

I want to start modifying my car but its automatic but I'm not really sure what the price of it is. Or do you think i should just get a new car that has manual transmission?

It will cost you thousands to do this - big job. Much easier to sell this and buy one with a manual. Cheaper too.

More than the car is worth, as said sell it and buy the one you want.

Sell it, buy manual version. MUCH cheaper.

Doing such a conversion would be extremely expensive and labor intensive. The cost would be approximately about the same as your Ford is worth. You would be better off trading for a vehicle that had the options and featured you wanted.