I was in the same position about a month ago. Bought an ex Tronic soldering station for $60 from the jungle website to go with it. It’s very easy and straightforward. The directions are very good.
There were two gotchas for me: one, a couple of the LEDs were already soldered on. That is good, but those two boards are no longer interchangeable. The other two boards with no components on them are interchangeable until you start soldering or cutting. The LEDs that were soldered on were very small, so I’m glad they came pre-soldered, but I didn’t notice them at first. Fortunately the older bat wingtips are largely symmetrical.
The second thing to note is if you are using the older bat wings, there’s a note at the bottom of the page regarding using different resistor values. Just need to read the whole page before searching for a couple of resistors that you don’t have!
Overall it was a lot of fun, well except for cutting the fiberglass wingtips. It reminded me of a Heathkit from back in the day. Excellent product!