debanderson: Welcome to the Forum brother veteran! Shame you don't have room to keep them. I bought my first pair while on active duty in 1979 and never looked back. Even when living in small apartments along that road traveled! LOL!!
$2000 is probably a fair middle of the road price. Then again, with "detailing", you may be able to command a higher price, particularly if you can fix those water ring stains.
From the photo, they look very nice, and everyone's recommendations on cleaning, oiling, etc. are correct, even if you decide to keep them. The 3 parts turps & 1 part BLO is a good idea to "rejuvenate" the wood. There are other oiling solutions, but if they have not been oiled for a number of years, the BLO mixture types are very good at "rejuvenating". You can also substitute mineral spirits for the turpentine, but a good ratio to work with is 4:1. Maintenance "oiling" after achieving the oiled appearance desired should contain lower ratio of BLO as it has a tendency to build up over time.
Don't oil the tops yet if possible. On the tops where the water spots are, are the water rings dark or light colored?
If they are dark colored, it usually means that the water that spilled contained iron, and you can use some oxalic acid mixed with distilled water (1). You should remove any oil that is present before applying that solution. To do that, you can rub the tops down with mineral spirits and after they dry off (24 hours) work on the stain rings with a q-tip.
If the stains are a lighter color, you can apply some walnut stain, again after thoroughly removing residual oil. You can apply the stain with a q-tip, etc. Usually, after re-oiling, the stain will be virtually unoticeable.
To effectively clean the side grills, you should remove them and simply wash them with warm soapy water (Dawn dishwashing solution works). Pad them dry, thoroughly wipe any water spots off the frames and lay them horizontal on towels to dry. On the top section, first use a clean, unused, good quality 2" paintbrush to dislodge and particles trapped in the fibers; then use a good vaccum cleaner with a brush attachment, and then a distilled water dampened cloth and wipe carefully horizontally and vertically taking care not to press in where the cloth is over the driver "holes".
Hope that's of some assistance. Good luck, and if you sell them don't forget to consider another pair of Klipsch speakers that may fit your needs.
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1. Jewitt, Jeff; "Refinishing", Section-9; re: oxalic acid; Taunton Press; 2004.
He has truth; the wheel of time may roll whither it pleases, never can it escape from truth. It is important to hear that such have lived. All Hail Hypno Toad!!!