blast city psu

So I fried my Blast City PSU (400-5325-01, for Jamma + JVS), and I've been going crazy trying to figure out how to fix or replace it, since I'm just learning all this :/ I've read that replacing a Blast PSU with another machine's PSU is a huge amount of work, but please help me understand why I...

From a Blast City PSU , or VS City I think too. Don't care if it needs a recap,I can do that ;p Or if you have a similar board that can install in its place, into the Blast City internals to power Jamma + JVS , I guess let me know!