Idler bearing grenaded

[Boyscout]

I have a spare gearbox and had a look yesterday. The only bearing that has those small rollers is the inner idler needle roller. It has two rows of those needles. so I will need to find a replacement idler gear as well. I'm sure the current one is fornicated. Then i need to get a replacement flywheel housing as well. seeing as the current one has a crack in it. I have two spares but they are both cracked where the starter mounts. So if anyone has a decent housing or a idler gear they are prepared to part with, please let me know.