Joined: Jan 2008
Posts: 23,639
Likes: 1,106
From: Mans of NC & SW UT Desert
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
One solution is to just go with a modern cartridge bottom bracket. Shimano units start at $10 or so for a UN26 and a UN54 can be had for $25 or less. I have used both on projects.