Homemade Spaghetti Sauce

I have a family recipe for sauce which consists of: Store bought tomato sauce, Store bought tomato paste, Onion, Garlic, Basil, Oregano, Sugar and Water

I have a ph tester to make sure each batch is under 4.6 ph. If it is well under the 4.6 can I water bath can it for the appropriate time? I never go with an unapproved recipe but would love to be able to can my recipe instead of freezing it every time.

I am also all for adding lemon juice directly to pints if that helps then tweaking it back to normal after jars are opened.