Ipod nano 3g lcd replacement - help

hi people, my ipod nano 3g screen is broken, i must change it, i find it in a store and i must replace it.
i fint thid great guide


but here, in the ipod nano 3g troubleshooting

they tells me
“Therefore, to fix this problem, you need to replace the front panel. Replacement also requires a new rear panel. (The nature of the clips on the rear panel prevent reattachment once the rear panel is removed.)”

Do you had experience like this before?
I can’t find a rear cover in my town and online, with shipment cost, and the lcd screed i almost realize a new ipod.
Please help me.