Is it worth $430 to you? I wouldn't buy it, but that's because I have a couple of No.4s and don't need any more. But you want one.
If I did want one, I probably wouldn't buy that one because the price is a bit high for me, but they aren't getting cheaper and perhaps you come by your money more easily than I do mine (wouldn't surprise me, I've always sucked at making money.) Maybe you can find one a bit cheaper, but probably not a nicer one for as much as $100 less. How does that waiting time vs. potentially saving <$100 seem to you? And if you think you can sell one of the bayonets for $50 and maybe the bolt head, the price is in effect significantly reduced. Sounds like you would keep the stripper clips and the tool, so they do add value to the package.
If I just wanted it to have and to shoot, and I thought it was in good serviceable condition, I wouldn't let those holes in the side of the receiver stop me having a good shooter. Do you just want one that works properly that you can shoot without worrying about how much wear and tear you are putting on a valuable collectible?
If I cared about having an unmarked example for a collection, this one wouldn't be the answer, because of those drilled holes. Is that what you want if for?
I wouldn't put any value on two bayonets because I'm not going to use it for bayonet practise or for displaying as a correct as issued example with a bayonet.
Your money, your choice, I hope you enjoy it. I don't think you will go wrong, either way.