Funding for a second degree after failed first? (Through ELQ rule exceptions)

In 2016 I started a BSc Psychology degree, which after fours year I ultimately ended up failing due to severe mental health issues. Specifically, I passed first and second year (although this was only through having a good chunk of my assignments each year deferred to the following academic year), but in my third year I couldn't submit my assignments and decided to repeat the year instead of just deferring them as I had missed a substantial amount of teaching through non attendance and my university agreed it would be a good idea to fully repeat. However, at the end of this repeated third year, I still could not submit my assignments and failed my degree.

All four years were fully funded by Student Finance - I received the full tuition loan and maintenance loan each year, and until recently I thought that if I ever wanted to try doing an undergraduate degree again (since I am in much better health), I would have to fund it myself. However, I just found out about ELQ exception courses and wanted to ask a few questions...

1. Is it true that I would be able to have a second degree fully funded (receive full tuition and maintenance loans) through Student Finance if I choose to study an eligible course? And is this the same for full-time and part-time ELQ exception courses, i.e., would I receive the full tuition and maintenance loans, for the full duration of the course, in either case?

2. Does the fact that I failed my first degree come into play at all? Am I still eligible for the above despite failing my first degree?

3. Since my first degree was a Psychology degree, would my second degree have to be something completely different (not related to to psychology/not fall under the CAH04 grouping) for it to be funded? Although I didn't actually achieve the degree, so it's not like I hold a qualification in that area?

4. Say a particular course had multiple HECos codes that fell into different CAH groups that differed in their eligibility for full-time versus part-time ELQ exception funding, would this course only be eligible for part-time funding as (if I'm understanding correctly) all HECoS codes need to be eligible for full-time funding in order to get it? For example, say one course had two HECoS codes, one that fell under subjects allied to medicine (CAH02) which is eligible for full-time funding and one that fell under psychology (CAH04) which is eligible only for part-time funding (an example might be BSc Psychology and Counselling - CAH04 for psychology, CAH02 for the counselling component), would this course only be eligible for part-time funding through ELQ exception?

5. If I can get another undergraduate degree funded, when paying this loan back, will another 9% over the income threshold be taken out separate to that of the loan for my previous degree. For example, if I'm earning £30k a year, will both 9% of my income over £27,295 (for the plan 2 loan for my first degree) and another separate 9% of my income over £25k (for the plan 5 loan for the 2nd degree) be taken out, OR will I only have to pay one lot of 9% of my income over the threshold - probably that over the lowest threshold of the two I'm guessing (£25k in this case).

Sorry for all the questions!!
Thank you in advance,
Danny