Like me it is sill worth it buying from KEH, they charge a fixed shipping rate in my case $65.00 this is for a big box so you don't buy just one lens or filter !!!
You save up yor $$$ buy the thing you want in EX condition (It will be almost like new) you then buy BGN and UG plus any other small thing might like till the shipping
goes above $65.00 then your box is full at the standard rate.
That then maks the shipping a bargin as well.
The only problem is EVERYONE IS BUYING the UG lenses..........Stop you don't need them
AS-IS was still the best, I fixed 3 F3 cameras with a $29.00 AS-IS one........still has some parts left on it