So, I got 2 quotes - 1 from paint worx in loughborough who are well known for VW stuff and one from a local firm. The local firm is well recommended and when I spoke to them it turns out they have done a few VW conversion bits and knew what they were talking about. This was for painting an LV-S chin / splitter in Ravenna blue / gloss black and painting the grills / dog bone plastics in gloss black with blue trims, inc fitting to the van. Paint worx quoted 550+vat, my local firm quoted 300+vat. Fairly big difference! I'm going to chance it with the local guys, as they are very well reviewed and its a big price difference. Given what I have seen others have been quoted just for the plastics, that seems like a bit of a bargain, given it would cost me almost 300 for aftermarket ones and I know I would struggle to fit them without breaking something
I'll see what they come out like and post a recommendation if they are good!
ps - Not sure if you planned to get the chrome effect trim painted, but the local guys suggested it would chip easily and wouldn't recommend. When I mentioned to paintworx they said they do it a fair bit and it can work with a lot of prep but they agreed its something that can happen. As a result I am going to get the matt black aftermarket trims and get them painted instead, which paint worx said they've done and works fine