Howdy yall! Its been a while sice I posted because on the same day I collected these concretions me and my digging buddy collapsed a chunk of the cliff onto ourselves and broke a few bones (Its all okay now and also congrats to whoever collected the concretions in the rocks). But all I have is a dremel 290 and these are gigantic concretions that I dont think I can prep by myself. I was just wondering if yall though it would be better if I just bit the bullet and got an actual set up or a ball park price to get someone else to prep it (I really want it well done another reason to get someone else to do it cause im garbage at prepping)