I've ported complex applications (not as complex) in about a month. So I could see someone already deeply familiar with Firefox and we assembly to get something working in a month or two, which 25k covers in almost all markets.
But the fact remains that those individuals are few. Whereas any schmuck can get Claude to do it (no offense to OP) so at this point I don't even think the money argument is worth discussing even it comes to LLM. For the majority of people a LLM is the difference between being able to do something or not being able to do it.