Thanks Brendan. Made a bit of progress.
The inlay is epoxied in and sanded, tried building up the purfling ledge with the binding paste method but found it less messy to use epoxy and then trim it back to make the ledge square(ish).
Purfling and binding glued on and roughly scraped (with a cabinet scraper) to being a bit proud of the timber. It looked not too bad when I took the tape off, but now can see a few gaps and some of the purfling joins don't quite match up. The gaps should be able to fill with the dissolved binding paste. Also the new binding needs to be made the same colour as the neck binding, needs to be not only a bit cream but also green as well. Not sure how to do that yet. Pics
I did order some ivory coloured binding but it ended up being more yellow than the timber so just used the white instead. Still need to clean up excess glue and try to fill the gaps then sand to level with the timber. Anyway, thats where it's at.
Grant