Farmall 300 broken front bolster

I went out to start the tractor today and found this. Not one of my happier moments for sure. I don't know how long it could have been like that and I didn't notice, but I know I was able to use the hand crank in the fall so it must have been okay then. I didn't notice it till I was coiling up the cord from the coolant heater but then it was pretty obvious. When I got this tractor one of the frame rails had been broken and welded, so perhaps the casting was cracked or weakened at some point and then finally finished breaking loose. At any rate I will need to replace it. I have a few H front bolsters but they are buried in the snow. I am wondering if anyone knows if an H bolster would fit. I know it would not be correct since it would not have the mounting holes in the front corners, but this is a work tractor and I don't need those holes for what I do with it. If no one knows I will dig out one of the H bolsters and bring it in to compare and see if the measurements are the same. I know I put the worm shaft off an H on the 300 when I got it in 2012, but of course there are a lot of other things that have to match besides just that. Thank you very much for any advice. Zach