I'm sorry mate but i doubt people will bid for a car on your behalf, they will be entering a legal contract to buy the car and if you change your mind/disapear/ get taken into hospital / dog dies etc etc they are the one that gets hit with the cost.

Dont worry there will be more cars out there, dont rush into it, its exciting to see a car you want go for so cheap but its fate if you couldnt get your paperwork in time. Remember theres laods of these cars every two weeks!