I decided to craft these today, cost 67k for the 12 steel ingots, and 14k for the beetle jaws, but the claws themself go for 8k in Jeuno (on Bismarck)
I had 28 Smithing Skill, and 2 Bonecraft skill, and it was on iceday, facing West.
So, i start crafting, and for the first 3 synths, +1 to both bonecraft and smithing, with bonecraft hitting level 3, and all successes.
Next couple failed, but i still got a +2 in smithing and then +1 in smithing and +2 in bonecraft, with only a beetle jaw loss.
I ended up crafting 9 of them from the stacks, and gained a lot on both smithing and bonecrafting, only twice where there no gains, and this were made up for with +2's.
So, all in all, i should make 15k profit, with uber skill ups, i definitely reccommend this for skill levelling up at level 28ish!