I recommend Budwig very highly, but I disagree with the zeolots who think you cannot combine it.
If you are on a budget, as many of us are, I will note that you can make your own oleander extract for mere pennies and that the common spice curcumin (turmeric) is very potent against a wide variety of cancers in doses of around 3000 mg per day combined with 10 mg of bioperine or else common ground black pepper and perhaps a bit of coconut oil.
Regardless of what else you do, practice a healthy mostly raw diet combined with Budwigs flaxseed/cottage cheese, get plenty of sunshine and fresh air, and use EFT and other techniques (such as yoga) to address emotional issues and stress.
Liver cleansing and protecting and regenerating the liver is a must - and the items needed to do so are pretty inexpensive. You can detox yourself from metals with cilantro and chlorella. Unyquity here at CZ makes a wonderful cayenne pepper tincture that I use daily and it costs but a pittance.
A diet where you have one day a week of fasting will help a lot, particularly if you alternate fasting days of water only, then dark grapes (concord are probably best) WITH grapeseeds (eat as many as you like but nothing else but water on the fasting day, and a fasting day of only juiced vegetables.
Trapper has an awesome potassium iodine he makes (SSKI) which should be combined with selenium (methylselenocysteine is the best form for fighting cancer). I urge anyone with cancer to include that in their protocol.
The habanero pepper, oil and crushed garlic on healthy bread suggested by Kelly Eidom is also very affordable.
I realize that all the items I suggest in my protocol can add up - though they are a relative pittance compared to mainstream drugs and treatment, but you can do many very effective things and stay within a fairly small budget.
Ultimately, it may be a question of can you NOT afford to do what you need to beat and prevent cancer and regain optimum health.
I pretty agree with Paul Winters and MadArtist (and gave both of them good votes) - baking soda is only effective for cancers from the throat through the digestive system and to the rectum.