Well, you could log into your Google Account in Aurora, download all your previously paid apps, and then remove the account again. Aurora wil still show you the price but if you click it and you have paid before, it will download.
I did this recently and it worked great. Then i disconnected the Google Account again and now i run Aurora with the anonymous session login.
On the topic of apps crashing:
I tried using the german "ebay Kleinanzeigen" app. I crashed the phone, totally unresponsive, battery from 30% to 0% in seconds. I had to uninstal it after charging and rebooting.
I also get regular crashed of "MicroG Core". I don't know why or what impact this has. All apps run fine, just the message pops up and i can clickit away.