In the case of the quant GRE, you would definitely be able to improve your score, as you mention (through practice tests, drilling problems, possibly a tutor). As for the undergraduate grades in math/sci/analytic, what’s done is done, but you might still consider auditing a graduate- (or even undergraduate-, honestly) level course in logic or analytic phil if you decide to do an MA program, for the experience and repeated exposure, if nothing else. I really do think this would improve your application.
I can say from experience that reaching proficiency in even ONE language (and a Slavic language at that) through self-study is no easy feat, so really, props to you on all of those, it's quite admirable. If you considered reframing your translation work from “I know it’s not ground-breaking” to “it is crucial to engage with philosophical perspectives of eastern Europe, especially given our current political atmosphere,” I’m sure it would prove to be a very unique strength in your application, rather than a potential “this student is interested in obscure phil with too few resources” weakness.
Of course, these suggestions are made under the assumption that you would consider reapplying to PhD programs in philosophy in the future. However, I believe it will be well worth it to re-examine, as you’ve already begun to do, whether or not a PhD program in phil is the best route, or even necessary, in achieving your professional goals. There is often more than one way to “scratch an itch” as it were, and as I’m sure you know.
I considered bringing up social/political phil with regard to Penn State in my previous response, but thought it might be too department-specific. But since you ask, I’m quite interested in feminist philosophy (and consequently philosophical issues of race, class, and gender) and particularly in investigating sociopolitical characteristics of language use, among other issues related to sociolinguistics. I’m sure this made me a very good fit for the department at Penn State. Not to be overly candid, but I find it odd that you claim that your AOIs don’t concern social or political topics, especially after listing literature, languages/translation, hermeneutics, religion, your job in education … ! But perhaps my own research interests are just coloring my perspective
Thank you for the congratulations. And, feel free to PM me if you want to talk in more detail about applications. I would be happy to chat given our mutual interests.