The above link is a strip from LRO of the north rim of Tycho. Center of the image is Long. 348.52, Lat. -40.95. Surveyor 7 landed at Long. 348.59, Lat. -41.01. If the figures I have are correct, then Surveyor 7 should be somewhere near the center of the strip. Perhaps someone with better eyes or better computer can spot it. Warning: There are lots of small boulders that look like what I would expect a Surveyor to look like, so take care and good luck.