Wiggy has it about right,
Swapping back into emaestro with that amount of work would be an impressive feat. Most guys use iBid or similar to contact each other and do peer to peer swaps so to speak. Having said that the FTL's still govern what can go on.
With bank, certain days will be embargoed if there is already work in the pot so its not as easy as it seems.
Fundamentally, the more senior you are the better chance you have of making your life fit. Simples.