Arizona Zcar sell some nice bits.
http://www.arizonazcar.com/
http://www.arizonazcar.com/
it took a while for my spoiler to turn up as well... nice to deal withFRP Auto - ordered the devil front spoiler from them. Initial contact was great, told I would have the item 2 weeks from payment. Claire told me my item had been done and wrapped ready for collection by courier. 2 weeks later no item.. I messaged asking for the tracking number and then had a reply saying my item was just being finished and would be shipped in a few days.. even though 2 weeks previous I had been told it was finished and wrapped. Item eventually arrived, quality decent but still needs work before fitting and spraying though.
Here is a UK distributor for them (they only appear to have VW Camper panels on their website, but I'm sure it's worth asking) --> https://www.klassicfab.co.uk/
Z car source works fantastic if you order from their ebay shop
https://zclub.net/community/index.php?threads/new-uk-z-parts-supplier-panels-bumpers-etc.27571/They were mentioned on another thread, I am sure...
here's a link to Klassic fab , they have a few more parts now ,
https://kfvintagejdm.com/product-category/datsun/page/2/?swoof=1&really_curr_tax=37-product_cat