I'm so happy that you have found Puddy and hopefully will be able to bring her home with you soon.
If I were you, I wouldn't be able to wait so long to take her home. After my Samantha went to the Rainbow Bridge I scrubbed the bathroom and replaced the throw rug she spent most of her last weeks on but I never replaced the hall carpet that she had also had accidents on. We had cleaned plenty of spots on the hall carpet but Milly and Izzy never had any issues with it. So maybe you will just forget about replacing the carpet and get Puddy sooner.