additional processing and customs charges on goldring 1006 or nagaoka mp150

Im considering purchasing the goldring 1006 or nagaoka mp150 on ebay.  Both indicate additional international processing and custom charges.  Does anyone know about  what this additional cost maybe?  Also any thoughts on both of these cartridges.  Looking to purchase for my pioneer plx1000.  My understanding is that the ortofon 2m blue is nice option as well but on my table could be a real pain to mount.

Appreciate your thoughts.
You guys are great, appreciate all your input.  I did contact LP gear and they suggested the Technica VM750 and Vessel A35V and never commented on the Nagaoka or goldring I was interested in.  It seems distributors will sell what they have in stock.  Anyhow.
Price wise Im leaning toward to Nagaoka MP-150 , goldring 1006 ($250-350) for my pioneer plx1000 , had considered the Ortofon 2m blue but was told its a bear to mount on my table.  But Im open to suggestions and would appreciate any other experience with either or perhaps  consider one not too much more costly.  As all these responses have noted there a many elements that one needs to take into account.  For example was thinking of the Soundsmith Otello which is an MI cart and luckily didn't proceed because its output is too low for the MM on my preamp even though its commented as a high output .  My preamp MM requires min 3mv/45k ohm and the MC requires low output and low impedence 0.2mV/2-100 ohm.  thanks again in advance.
PLX1000 is a nearly identical copy of Technics SL-1200MKII. I could mount the 2M Blue on it blindfolded.

Screws go right into the threaded Ortofon body. With Nagaoka, you’ll have to mess with nuts.

For a quick and dirty job, use the provided protractor to set overhang. Cartridge should remain straight in the headshell.

Sticking with the big boys like Ortofon and Audio Technica is a very good idea.
Do you know what the mass of that tonearm is? It’s not listed on the specs. You will need to know that before choosing a cartridge . You want arm and cartridge compatibility!
could not find the spec either.  I called pioneer and they indicated it was a medium mass.  May try again.  Didn't really tell me much thought
Effective mass is similar to Technics, 12g or so. It's medium mass. It will work with any of the mentioned cartridges in this thread.