Last time I installed engineered hardwood, the subfloor was concrete and I floated the floor. For my current project, there's a plywood subfloor so I'd like to nail it down. However I don't have a flooring nailer. They seem quite expensive for a single-purpose tool, and while I could rent one, I'd prefer to own a multipurpose tool I'll be able to use for more than just flooring installation. So now I'm wondering if there are any models that can act as both a flooring nailer and a finish nailer--for example, with the use of a 45 degree adapter for flooring use or something. Do any such a combination tools exist? And if so, are they any good?
Or is this a terrible idea and I should just bite the bullet and rent a flooring nailer?