The left hinge parts can be ordered but as the parts are obsolete you will pay a premium.
For example the US website here will dispatch the $12 part to the UK but postage and shipping charges give a total cost of £63.
Generally looking at the age of the unit, I would suggest that this device is beyond economical repair.
I havent heard that before, most MFP can enlarge as part of duplicating (scanning and printing).
For example the xerox one here can do exactly that working at 25% right up to 400% of the size.
Even the cheaper modes such as the one here do it as well.