I’ve not got my laptop to work out the sizes, but a quick geuestimate and working out.
You’ll not get the two side panels side by side out of a 1370 roll, perhaps out of a 1600 but I don’t think so, so you’ve a lot of waste there. Same with the back door, that will likely need to go up the media, creating waste.
Full colour parts I’d be at least £50 Sq/M… Guessing 3000x800mm each side, 1800×1000 rear, 6.6 m2 @ £50.00 = £330
The Orange numbers I’d be doing out of a cad vinyl, say 2m @ 610, £20 PLM
The blue text should come from a 610mm roll too, so same as above 4m @ 610, £20 PLM £120.00
You’re going to demolish a few meters of knifeless tape, and a couple of hours to clean & fit -£160
£610 as a starting point, if the customer’s a bit tight, I’d maybe go in under £600, if they’re really keen and want it doing ASAP, more towards £650.