I have now finally gotten a 8.3333MHz XF551 OSC clone working rather consistently. What this means is that one of the hardest parts to locate is now finally relatively easy to get. This is a SMT parts board, so those who barely can solder TH would be advised to order a completely assembled board rather than a bare pcb, but it is your choice.
Essentially it is three parts assembled onto a plug in board to the main XF551 board. You would simply solder it into the original OSC footprint on the main board.
The bare board is running around $2.00 per and assembled will be around $7.00 plus shipping. tf_hh should be able to offer the bare boards as well to those in europe. I don't know if he wants to assemble them.
I currently have 8 bare pcbs available, with the usual option to order more if there is demand. Website should be updated in 24hrs or less.
This the kind of thing I enjoy seeing, nice job!