I too consider panniers essential on my bikes, and quite liked the HB juniors on my Lemans.
The line in the sand for me is any top box.
Not gonna happen.
I have a tail piece/seat cowling for a Nero Corsa NOS still in MG bubble wrap .No seat . $350 (SOLD !)
MG expandable tail bag ,VG shape, was on the MG rack on my Lemans. $80
Joe Kenny head guards Excellent cond. $50
Please PM for pics
Thanks