I am going through the safe in place. I went back and forth and have decided to use a Chemical anchor for my AMVAULT. The very helpful people at Hilti and Redhead have assured me that the chemical anchors are stronger than the wedge anchors buy a good degree. They also stated that the whole is not as critical when using a product like C6 plus and that the installation would be more robust and secure. I tried multiple times to talk them out of a chemical and back into some type of wedging anchor but they persisted. So, I am now gathering supplies to complete the process and I'm only waiting for one of the special caulk guns to go on sale on eBay..
Here is my parts list if it helps...
1. Epcon (Redhead) C6+ (They're Recommended Epoxy for slab concrete)
2. Hilti HAS 1/2 in Threaded Stainless 6 1/2 Rod
3. Epcon "brown" brush with extender
4. Dewalt Carbide 9/16 Hammer Drill bit
5. Caulk gun with at least 26/1 compression rating
6. Small Hammer drill (rented)