I just went to
USPS Priority Mail, it's flat rate, the small box is $4.95 in Post Office, $4.85 online.
PM me your address and I'll mail you some $$$ ...
You've mentioned IP's are usually taken but if you come across a 7.3 that has the IP and Filter head I would like the return line fittings out of them as well ... The fittings where the returns hook up, they are sized orifices to restrict flow.
Again, Thank you very much.