As a person with chronic lyme speaking to many others that chose both routes I would possibly opt out. There is a lot of new evidence with each study that shows further complications antibiotics can trigger then previously realized, things like mitochodrial damage and dysfunction, shifts in microbiota functioning, stress on a very cellular level.
Of everyone I talked to and from those who did recover it felt that response to strong IV antibiotic therapy was not too great of a determining factor to make worthwhile. Many people took it for years, and years and were still sick, others took it for around six months then stopped and relapsed some time later.
Most develop issues with candida and always report feeling way sicker after starting it. Of course some do get well on it as well. It is just very hard on the system and I question if its worth the risk/reward myself. Keep in mind you can always try an herbal anti microbial protocol route as well.
Oral antibiotics were also shown to be as effective as IV if given the right dosages and combinations. Generally though it seems evident now that any form of long term pharmaceutical antibiotic therapy is very hard and stressing on the body, akin to chemotherapy for cancer. Perhaps this is why some people get well with it and others either relapse or do not get better after years of treatment with it.
If you do decide to follow through with it then I would definitely suggest you take NAC as its been shown to help protect the mitochondria during the treatment, do not use any form of quinoline based antibiotics(one of most toxic drugs on planet), take plenty of probiotics while you are receiving treatment, and make sure your vitamins/micro mineral needs are met.
You will need a strong bio film/cyst buster and be sure that the antibiotics target all the co infections you are dealing with, if not combine them with things that will. Buhner has some herbs that are suggested and synergetic with antibiotics to treat certain infections. At least that way you make sure you really clear everything out. You may also want to do a fecal gut microbe transplant after your antibiotic therapy is finished as well.