When sellers say they need a quick website, they usually mean two things: live soon, and without surprises. Both are achievable without settling for a generic template you will outgrow in six months.
Fast does not mean flimsy
A focused landing page can be live in days, and a full store in one to two weeks. Speed comes from a fixed scope and a proven process, not from cutting corners on design or performance.
Fixed scope, fixed price
The best way to move fast is to agree exactly what is being built and what it costs before work starts. No hourly meter, no scope creep, no mystery invoice at the end.
Built to be handed over
A quick website should still be yours. The code, the repository, and the hosting accounts transfer to you, so you are never locked into the people who built it.
Where to start
Pick the smallest thing that proves the model: a landing page, or a starter store with your top products. You can always scale up once sales are flowing through a platform you own.