There's other people that will offer to fence for you, and joining the thieves guild to get someone to fence for you doesn't take 40 hours,
you don't get a ton of Fed Ex quests, you pretty much have access to a fence right from the get-go
lol i didnt say i was trying to join them the hole time... though when i did want to join them it took me some time to find a mission that led into it... strangely i was doing a mission for the dark brotherhood when i got it.
look i understand that there are fences and such that are eventually opened up in other towns and until then you can go to the main HQ. But the point i'm trying to make is that it simply defies logic that if i steal from one hold and then go to another that either doesnt know or doesnt care about my crimes elsewhere then how would the shopkeeps, that dont even have any of the information that the guards have, know that what i am selling them is stolen property from a hold on the other side of the map?