The fastest route to a site you are not apologising for. What you have now has the right bones and the wrong execution, so this fixes the execution: built properly, copy corrected, works on a phone, findable in search.
Saying this plainly up front is cheaper than discovering it halfway through.
The problem with the current site is how it looks and reads, not what it says. If you already know the message works and you just need it presented like a real company, this is enough. If you are not sure the message works, Growth is the honest answer.
Nothing is locked in by reading this. Go back, pick whichever option fits, and answer the questions underneath.