Yes, but one of the serious issues is the lack of a trained officer cadre. Most independentist armies were lead by officers that learned "on the go" so to speak and were against properly trained European officers.
Since the Napoleonic Wars are still ranging in the early 1810s, there won't be European mercenaries able to be hired, so to change this, we need deserters from the Spanish army like Jose de San Martin to, well, desert earlier.
I wouldn't necessarily bet on the lack of nationalism. When the Brazilians from Rio Grande do Sul rebelled, the governor of Buenos Aires offered the rebels to send Argentine troops to help them. They answered they would turn back, rejoin Brazil and attack the Argentines the moment they crossed into Brazil/Rio Grande do Sul.
And many people did go well beyond the call of duty. I'd say the national identities were being born as the war progressed. That doesn't mean the Altoperuvians felt themselves part of the Peruvian or Argentine nation, of course.
That's the point. A lot of the libertadores were officers in the Spanish Army that saw combat and then decided to fight for the freedom of their nations. Francisco de Miranda, for example, was a prominent officer in the Spanish Army and had participated in the American and French Revolutions. I think that a libertador organizing several desserters of the Spanish Army under his rule wouldn't be ASB. Also, there must be some officers that decide to join the patriots (some corps in Bogota and Caracas joined the Libertador Army for example). The key point is organizing for a revolution before actually starting it.
I meant when they were still colonies. Spaniards ("peninsulares") felt, well, Spanish; most Criollos probably did as well even when the Peninsulares didn't see them as equals; and it's likely that most natives and mestizos (the great majority) wouldn't have any national identity. Nationalism started to develop during the war, but the proccess wouldn't be complete until later, and even then it was more based in the common hatred of the enemy than the love for the nation . Riogranadienses disliked Brazil (let's just say that, we don't have time to analyze the reasons of their rebellion right now), that's why they rebelled, but they hated Argentina even more. Thus what holds a country in such a situation is interest of the regional ruling classes. Nationalism would develop later, integrating the country into a true nation.