7.3L Valve Spring Compressor Tool

[oi8228oi]

Where Can i find a valve spring compressor tool P/n 303-483 at a reasonable price. 1800rotunda wanted $300.00 for it. and are there any other tools that will work on these valve spring? Thanks for any help.
PS i promise ill post all my pics of my motor tear down and rebuild when the trucks running again...