
Itadaki Street: Dragon Quest & Final Fantasy 30th Anniversary — English Translation (v1.1)
Looks like a user Fishyfishyfishy on gbatemp created a fan translation for Itadaki Street. Keep in mind this just released, so there might be bugs.
It does look like they're continuing to tinker on it, so it might not hurt to wait for further updates.
https://github.com/fishyitadaki/itadakivitaeng
From what I understand, there's also another user working on their own translation. Considering the nature of these games though, I think even passable translations should be fine.
Edit: changed resetera to gbatemp