Make or break in the next couple of days. If the scarf joint went well, gluing a little extra maple to the heel should, in the end, be barely noticeable on the finished guitar. If you know about it, you can spot it in the lower cutaway, but otherwise. It should not be a problem with integrity I think, especially with a fretboard glued on top. Even if it goes south, I'd rather practice on this one a little longer. Maybe it wasn't clear yet, but I've already did some work on it, so the alternative is throwing it in the trash (or keep it for that short scale build that may one day arise).
I've already got a spare blank. Different setup, but I ordered two at the same time: maple with bubinga strip and maple with double purpleheart stripes. Working on the bubinga now, hope to save the purperheart for a later project. But, if need be, I can start working on that one.