Conversion assistance needed!

[OzDragon]

I'm horrible at converting things from xx to 5e.

If someone could assist me please I need the Bebilith from 3.5 converted to 5e for this weekends game. I know it's short notice and I'm sorry!

Also if possible could the one who does upgrade it to CR 17-18 ish please.


Thanks in advance.

[Falcon X]

I think someone at DMs Guild has done a conversion:
http://www.dmsguild.com/m/product/194312

Or just search Bebilith and several other conversions should pop up.