300 ftlbs? Based on my experience, it would be a waste of money. In very short order it would be gathering dust the miscellaneous storage drawer and replaced by a more expensive and capable tool. If you can afford it, upgrade now.
Like I told a neighbor contemplating a smaller HP snow blower- when was the last time you heard someone complaining about having too much power?
It’s only going to take one or two times it falls short (and it will) for you to regret buying the economical version that is fairly limited in power…