£2,000 for a new engine cowl? I know replacement outboard parts can be expensive, but that's out of the park.
If the cowl is cracked, you can patch using a glass-fibre kit, including mat and resin, importantly doing this inside the cowl. Any imperfections outside can be levelled off with plastic padding filler. It's possible to respray with spray cans, but a body-shop will be able to achieve a factory finish.
What is expensive is replacement decals. I bought genuine Tohatsu decals for my engine. Not much change out of £100.
One other option is a genuine outboard cover. Most of the big manufacturers make bespoke covers to protect the engine from harmful UV sunlight. Look great in my opinion. Saves you respraying, after repair.
Is that with or without VAT?