With apologies i was kinda writing on shorthand.
A lot depends on whether you have a tame Educational psychologist/clinical psychologist and frankly how rich you are.
If you can get whatever provision you want written into section F the LEA remains legally responsible for securing and paying for that provision. So if anything in section f isn't provided you go down the judicial review route.
If its written as personal budget with homeschool/eotas as the named placement, the LEA are not responsible for the provision and its up to you to sort. If for example you gain funding for a forest school you have to find the school and you have to ensure the provision is adequate. You don't necessarily have to run the forest school yourself, but it's your responsibility to find it and monitor the provision iyswim.
Lightlillies is quite right, you can get anything written into an Eotas package, from forest schooling to counselling to a online school such as interhigh. Also as she quite correctly points out equipment, so for example at transition to secondary we were looking at laptop hire (so I wasn't responsible for maintenance) and voice recognition typing software.
Home schooling, in terms of "true" homeschooling you derister your child out and you take responsibility for the whole shebang. The LEA retain a degree of oversight in that you might have to give a report or home visit yearly. Your EHCP remains in place with the annual review but the LEA has no responsibility for implementing it. In order to show you are providing an adequate education you have to show you are meeting the needs within the EHCP although that doesn't mean you have to provide the same provision as F.
If you're unschooling proper you probably will have some involvement with Education Otherwise (I personally don't necessarily agree with much of what they say but I know many homeschoolers think them wonderful). You will also find similar families through Facebook groups involved with the charity more than local home Ed groups.
Bear in mind the cost and challenge of taking formal qualifications as an external candidate. Also whilst unschooling entirely may be appealing not having GSCE English, maths and science can limit your options in life significantly.
I also know families who have deregistered then self funded interhigh and private psychiatrists. It work very well and definitely the least stressful, quickest, route.
Also There is recent caselaw that means if you are asking for EOTAS is is a little more complex than just requesting it and the LEA saying yes or no (as was the case at DS' transition to secondary). You do have to show why traditional settings are not appropriate. In DS' case this was easy as Mainstream schooling was unsafe, homeschooling had failed, medical schooling had failed and he was turned down by every specialist provision we approached. That said the LEA ed psychologist supported EOTAS for DS and this alone would probably have been good enough.
In your case you've got a good argument as she is definitely Mainstream ability so special inappropriate but Mainstream has failed and medical provision is only temporary. But it may be worth looking at dyslexia specialist provisions such as Frewen, even if it is just to rule it out.
Online school like Interhigh work so well for Mainstream ability kids with anxiety. They can attend school still study for gcses but attend in pj's and keep the webcam off if they want. Again you need a plan for how/when to take tge GCSEs
Many colleges offer GCSE maths/English (including taking tge exam) for 15-16 year olds who are homeschooling or have medical difficulties. So well worth considering a hybrid approach.
I'm sure I've repeated myself a bit in this posts but my point is there actually are just so many options, even though it might not feel like it