Ofmega backside bracket bearing alternative

I’ve a mid-80s Gitane Tour de France body that has an ofmega 34.8 x 24 F.s backside bracket 68mm x 110mm lengthy axle. This is not going to work with the crankset and cassette I am attempting to make use of as a result of the axle shouldn’t be lengthy sufficient. I’ve not been capable of finding an extended axle on ebay for the 68mm but.

I need to know if there’s a extra trendy backside bracket bearing that may match this body that has an axle size of 120mm.

Thanks on your assist.