I have a 260/280 crank. ie 79mm stroke.
Its std/std and useable as is with a light polish.
Also others which may or may not need a little more work.
I also have L26/L28 rods ie 130.2mm length Sets with pistons or without.
.
I have an L24 block 83mm std bore but no L28 blocks.
07778 411568 pmaczc@madasafish.com to discuss.