I did it! I just submitted SKATER+ with the word count coming in at 5248 words! Just over the required 5000!
https://itch.io/jam/rpgenesis2019/rate/464984
I'm happy for that 5000-word requirement, though—it forced me to create some rival characters and flesh out what they're like and how their SKATE+ stats reflect who they are, hopefully providing a good pool of examples for people trying to create their own skaters.