Syncing the Blockchain on an offline PC

[missfox]

What is the safest/easiest way to sync an offline desktop wallet? I like the idea of signing transactions on the offline pc, then transferring them via USB or similar medium and broadcasting from a pc that connects to the internet. 

Naturally, once you push a transaction or two, you need to sync the wallet, otherwise it will try to sign transactions using invalid inputs. Where can i safely download block data, and what is the proper way to add it to my wallet directory so that it can sync past my latest transactions?

Thanks!

[Kargai]

Not sure i understand well enough your question but maybe this thread will help you ?

https://bitcointalk.org/index.php?topic=1310261.0