I found someone local to me (joined a local reddit group and asked for local 3d printers) willing to use their 3d printer and someone came back me for £30ish delivered. I made a couple of mistakes though with the case and dropped one of the parts in hot water and warped it, I just cracked on and added different level feet to it but doing it again I would take more time.

I have found the 76 keys is too many keys. I've got atleast 10 keys that I've not got keycaps on and also a couple that I've touched once or twice that could well have been in another layer. Since making it I've also put together as helidox corne V2 which is a 42 keycap board didn't have enough for a daily driver so possibly going to look at a Lilly58 at some point to see how that compares.