Well done Ben!! I agree with the guys...get some sleep and I would suggest (no joke)..a calm walk in the morning in a good environment for half an hour. This will clear your head and maybe you will see something you can model very quickly.

Me personally...I would go for a house or similar...its something you can do very quickly. Or something like one of my instruments...very quick..easy but technical in a way.

Good luck whichever way the tide takes you my friend...I envy you.

cheers bullet