WTB Austrian Lorenz parts

[Fauch125]

A friend of mine is looking to restore an inherited Austrian Lorenz rifled musket. He's looking for a type 1 rear sight, hammer, front band, and front band spring. His musket is browned, and the parts are stamped "17". Any information appreciated and I will forward any offers. Thanks,
Jon Fauchetr 4th Va. Inf