I did it and got.
(100%) 1: Christ Church (1546) Books, bargains, etc.
(98%) 2: Balliol College (1263) Books, bargains, etc.
(93%) 3: New College (1379) Books, bargains, etc. This is the one I was greatly considering!
(92%) 4: Magdalen College (1458) Books, bargains, etc.
(89%) 5: St. John's College (1555) Books, bargains, etc.
(87%) 6: Corpus Christi College (1517) Books, bargains, etc.
(87%) 7: Wadham College (1610) Books, bargains, etc.
(86%) 8: Brasenose College (1509) Books, bargains, etc.
(84%) 9: Hertford College (1282) Books, bargains, etc.
(82%) 10: Lincoln College (1427) Books, bargains, etc.
(81%) 11: University College (1249) Books, bargains, etc.
(80%) 12: Merton College (1264) Books, bargains, etc.
(80%) 13: Oriel College (1326) Books, bargains, etc.
(75%) 14: The Queen's College (1341) Books, bargains, etc.
(74%) 15: Exeter College (1314) Books, bargains, etc.
(73%) 16: Jesus College (1571) Books, bargains, etc.
(68%) 17: Trinity College (1555) Books, bargains, etc.
(66%) 18: Keble College (1870) Books, bargains, etc.
(65%) 19: Worcester College (1714) Books, bargains, etc.
(65%) 20: St. Hugh's College (1886) Books, bargains, etc.
(64%) 21: Pembroke College (1624) Books, bargains, etc.
(63%) 22: St. Peter's College (1929) Books, bargains, etc.
(62%) 23: St. Edmund Hall (1278/1957) Books, bargains, etc.
(59%) 24: Lady Margaret Hall (1878) Books, bargains, etc.
(57%) 25: St. Catherine's College (1963) Books, bargains, etc.