So good news! I had my IVA retest today and it was a pass!
It only took 20 minutes to check the fog light, set the headlights up and check emissions. There was a lot of discussion about emissions as he had tested me on the stricter 0.5% CO limit and said I had failed until I pointed out I should be tested on the 3.5% as my engine is 1993.
I need to wait for a cheque book to arrive before I submit my registration paperwork as the DVSA only accept payment through either cheque, postal order or shillings

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I have Blyton park booked for Saturday 14th August so I just need to fit a new gearbox output oil seal, refit my proper steering wheel and refit my dB killer this weekend.
Thank you so much everyone for your support over the past 12 years. I really couldn't have done it without you and this forum.