Complete exhaust or downpipe W202 V6 C280

[DVA1]

I’ve been quoted just over £1000 for a custom stainless exhaust supply and fitting. I’m not sure whether that’s about right or too much but I was told since the start of the year costs have gone up by 60%.
I need the down pipe all the way back to the cat.
Does anyone have one or know of somewhere that can supply and fit at a reasonable price?

I’m based around the Liverpool/Chester area.

Thanks