With Sportsman's Guide, you add a few items to your cart, then "checkout as Guest." Fill in your info, it will ask if you want to join their Buyer's Guide, click yes, and the pre-approval pops up. Never showed my limit so I called and she told me $5k.
This just worked for me but I accidently closed the page after approval and now all the information is gone. It actually put the temp credit info into as I was checking out but now its gone. Does that mean it didnt go through or should I call and see whats up?