From what I understand, 1F engine parts are hard to come by for a rebuild. I would suggest searching craigslist, IH8MUD, etc. to find a good running 1F as a replacement. Or consider a 2F swap. 2Fs from FJ60s are pretty plentiful right now.
What are your symptoms that make you think it threw a rod?
"Stay the Trail," "Tread Lightly," and "Leave No Trace" ethics
Rising Sun Bio
2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering,
soon to lose the Sanden OBA
to go back to factory emissions
Limited TRD 2UZ-FE FOR SALE SOON
Up next: Something that makes a funny whistling noise...