Crank/rods are not rebuildable, nor worth it really, IMHO. You can look at S&S flywheels/rods, unless you find another 88 crank and rods to replace it, but have it reworked, welded/indexed and a Timken bearing conversion which you mentioned.
Kirby (Prodrag1320) and Scott (Hillsidecycleco) are two people here that can help you, as they do this for a living.
I'd be reader #39.
“When the going gets weird, the weird turn professional....” ~ Hunter S. Thompson~
R.I.P. Rubberdown. 1971-2012
"Your Jedi Mind tricks will not work on me...... ~Misinlink-2016~
2005 E.G. Classic
S&S 510 cams
Baisley Oil pump spring
Rinehart 3.5" pipes
S&S adj pushrods
3 stickers (Adding 5 hp each. I swear......)