Thanks, everyone for your advice! It is always gratefully appreciated.
So I ended up doing that thing that I do when I wonder if I should do a thing - I just did it.
Cut and rasped and sanded to 500. Manhandled and strength tested it along the way and I am no longer unsure of the strength of the wood, though I did make her a little on the heavier side in the middle as a precaution.
Bathed in a mix of beeswax and orange oil, the grain and contrasting woods popped like crazy. This one really beat me up, not a single hard edge anywhere after hours of filing. The Chalice is a real classic beauty and I've come to really like its simple ergonomics. Gonna make another in my bamboo for my own use.
If you want to make this one yours just shoot me a pm and we'll talk.
Again - thanks for the wisdom, gents.