Ringworld RPG bundle for sale

I have a number of Ringworld items for sale, all as a single
package. They have been kept in a pet-free, smoke-free environment.

1) The Ringworld RPG boxed set
All books and original inserts are present, and all are in excellent
to near-mint condition. There are no dog-eared pages, no
highlighting, no pencil marks, and no suspicious stains.
I believe the dice in the box are those originally included with the
set, but I cannot confirm this.
The box inks are still bright and vivid, but there is minor shelf
wear along a few of the corners. There is some bowing both on the
top and bottom of the box, but it is restricted to one side/corner
only. Overall, I'd still rate the box as excellent. The bowing is
largely cosmetic. The box is structurally sound, and will remain so
for many more years with the proper care.

2) The Ringworld RPG Companion
The book is in excellent to near-mint condition. You may find minor
shelf wear, but nothing that would prevent it from being sold as new
by a bookstore. The binding is tight, and the pages have not been
marked or dog-eared.
The book has been stored in the Ringworld box for as long as I've
owned this set.

3) Guide to Larry Niven's Ringworld
The book is in excellent to near-mint condition. There are no marks,
significant wear, or highlighting/notes, and the pages are not dog-
eared. This fully illustrated companion book to the Ringworld series
was written by Kevin Stein and illustrated by James Clouse and Todd
Hamilton. It has full color plates of most of the Ringworld races,
and many other illustrations, if I recall rightly. The color cover
is still bright and vivid.

I'm asking $160 for the lot.* I accept (international) money orders,
(cashier's) checks, and Paypal.

I will ship worldwide. The $160 price INCLUDES shipping in the
continental United States. If you live outside the continental
United States, I will charge actual shipping costs LESS the cost of
shipping in the Unites States, so you get the same "discount".

I am entertaining serious counteroffers, and if I receive multiple
offers at my asking price, I will have a single, sudden-death silent
bid-off. My email address is merwin AT gmail DOT com.

I have an unblemished ebay rating, and numerous transactions with
net-faring individuals around the world. I take my reputation very
seriously, and package all items securely.

While I do not offer refunds, I do my best to insure the purchaser's
satisfaction. I have described all items to the best of my ability,
but they aren't in front of me at the moment. There may be minor
oversights, for which I do not accept any liability.

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*While this price may seem a tad high, I'd like this item to go to a
good home. To someone who has the means and the desire to take good
care of it. Perhaps even to a home in which the game receives active
use as a game as well as simply reading material. Projecting my own
flaws, I have priced the item such that someone who purchases it
will likely desire to "get their money's worth" out of it.

As I've said, I am accepting serious counteroffers, but based on the
condition and rarity of these three items as a bundle, and the state
of fandom today, I hope to have a few offers at the asking price.