I sometimes only check my account from my mobile. Therefore sometimes it takes a while for me to respond to PMs even if it appears as if I've read the message. If I haven't responded, it means I probably forgot.
Regarding prints listed for sale/trade:
I ship USPS Priority w/ Insurance on all items, unless otherwise stated or requested. I also ship international. Please check my ISO and/or do not hesitate to contact me an offer for something listed (trade or cash).