I'm glad to hear that you are happy with the results

I've made the entire package available for anyone to download
here. ( If anyone extends this armory using these resources to include additional equipment, please share your changes with the community.)
If you (or anyone else) wants to continue what I've done for your existing items, it is not difficult - just time consuming. I've left enough layers in so that you can see my technique. The real trick comes in eliminating the shadow (which is heavily colored from the background and nearly impossible to extract) from the original image, and then using a drop shadow to faithfully recreate the exact direction, spread, and intensity of the shadow from the original layer. In most cases, you can get suprisingly close with this. You can check how close you are by using "multiply" on the layer on which you are cutting, until its shadow falls right where it should be according to the armory. Also, always remember to move/size the cutout and the background layer for an item together so that they stay locked in position. Hopefully, I have more good photoshop habits than bad.

I've included each piece of equipment in its own .psd (as you did in your card pack), as well as a "master" pdf. I have also included the sheet I used to align those images for printing in drathe's format. And of course, the final PDF most people will want that they can just print out.
Thanks much to GimmeYerGold and drathe!
EDIT: Published the link to the resources now that I have been granted permission by drathe.