EDTA absorbs well in the rectum, and if done at home is much less expensive than IVs are. Lots of companies sell EDTA suppositories, which deliver the EDTA into the rectum, and from there into the blood.
The suppositories are overpriced (although not as expensive as IVs are), and a way to make the process even less expensive, is simply to buy EDTA on any major supplement selling website, open up the capsule and put it into a little water, and put that into an enema bottle to be put into the rectum.