As laid out by the actual expert at Trump's coronavirus press conference tonight (not Trump), American regulations on safety and efficacy mean that "rushing" a vaccine will take about one year.

Quarantine isn't the only way to slow down the spread of a disease, and it's not unheard of for large changes in behavior to happen in response to large risks. Hand washing or even mask wearing could become more popular. E.g. https://zoomingjapan.com/life-in-japan/why-japanese-wear-sur...

From what I’ve read “rushing” for vaccines means it will be ready in 2 years

Since this is the first time that the world is facing such a pandemic, this must and I assume will be changed.

It will, thus bringing the ETA to 1 year or so.

I'm not sure that it is possible to do so.

Vaccines take a long time to develop; just throwing more money at it isn't a solution. You need to understand the pathogen, which just takes time. Getting the IGg out of horses or whatever takes time. Making sure you can use horse IGg versus rabbit IGg takes time. Trying it out on volunteers takes time. Mass producing it takes time. The officials aren't joking when they say 2 years.

SARS still really doesn't have a vaccine, and that effort started in 2003. Heck, Malaria took ~50 years for a kinda-okay-ish vaccine.

Fact is, there is a very low chance of a vaccine for this one.

Wash your hands, don't touch your face, stay calm.

First there is a small safety trial of several months, followed by an efficacy trial of I think six months. We could possibly skip the efficacy trial at the expense of potentially loading up people with multiple not-very-effective vaccines. And getting through safety trials doesn't mean there are no side effects, so we'd have to deal with those compounded as well.