That is most definitely not the stock bridge. The stock bridge is narrower than this bridge.
Do
not realign the neck because that isn't the problem. If you do, you will end up with the same too wide string spacing problem and a crooked neck to go with it.
Finding the original bridge is the ticket but that might be tricky. There are a great many of them (under various names) that are considered junk and sitting unused in closets or the attic and maybe you can get a bridge from a TBer who would part it out. It's even possible that I still have one and I'll take a look through my pile of parts today. If I do have one, I'll PM you and you can have it for the cost of shipping.
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It's likely that the original bridge looks like this. Find one and your problem will be solved.