Usually you can flip the part over and drive them out from the back. We hope this gives you some ideas and tips. And a dose of inspiration that it can be done. Ask questions of other woodworkers on the various woodforums such as this one and rec.woodworking. Most importantly, know your own limitations.
Financial resources are very limited.
It would be a shame to waste them on something you can't fix. Sometimes restorations approach the cost of a new machine. It is reported that the Duke bought his Unisaw for way more than it was worth. But in the long run will have in it the price of a new saw but he has a vintage saw that he adores and as stated above it was bought on the installment plan. For certain machines, yes, but for others, no.