I guess opinions vary and there is a chance that she is honest. I'm going to take chances and meet her. There is nothing to lose except few hundreds dollars .....
...and waste your time, perhaps leaving a bad taste in your mouth.
You have decided to go, and with preparation and the proper attitude) you will enjoy the experience one way or the other. Ukraine is a fascinating place for anyone with a sense of adventure.
You are correct that your relatively young age will give you a fighting chance. Neverthless, be prepared for a
Professional Dater if she meets you for more than an hour and does not do a bait and switch.
- Do not buy her anything, not even shampoo, until the third day and only then if everything is looking good, really good with no questions.
- One nice restaurant is good, but not every day.
- You do not need a personal driver/car (use public transportation and remark that you do not care if it takes longer because you will be with her)
- A full-time interpreter is unnecessary, and if she insists, tell her that you want to see how the two of you relate with no help with communication
(most interpreters do not join you in bed

)(if you have time, purchase an electronic translator).
- Be totally convinced of her sincerity if you keep spending time with her (no red flags such as the above, no persistent yellow flags).
I say this because sincere women typically have a frugal attitude even if that is not their true nature.
There have been a few trip reports by members who spent time with a professional dater. Read those. I seem to recall Handycam ??? writing such a T/R on his first trip; and he learned a lot from those mistakles and is now a seasoned veteran of multiple trips knowing what to do.