You would be better off saving around £25000 and saving it until you are in a position to offer to pay for it if offered a job. I know some airlines in the far East take ab initios on so long as they foot the bill for a rating. By doing a type rating you may make the situation worse - lets say you do an A320 rating, but then find the only job on offer is on a B737-300 and they want you to pay for the rating or take out a bonding loan?
Whats your plan then?