Just had the same problem! 12 pound for the seal and a total cost of 60 to fit, they said they need the car for half a day, to air it all out and dry it properly, thats why the labour is so much! Crazy!
What primer and paint was used here? looks pretty smart, looking to do mine gloss black, had a quote from somewhere to do it (was ridiculous) might as well have a go myself.