I spent about a year selling my audiophile & japanese pressings on eBay with good results.
I would recommend the following:
Post at least 10 albums at one time, 9.99 minimum bid, bid ending between 7-9pm on Fridays. Themes are a good idea, post rock and roll one week, jazz another. Make sure audiophile is in the title (people search on that), MFSL, Telarc, M&K, Nautilus, 1/2 Speed; all of these are ones that people use to search, get them in the title as you can. (the fanatics will be searching in descriptions also, so be sure you get those search terms as part of your description)
you really NEED a picture, and I've personally had the least amount of hassle with AuctionWatch.com for image hosting. Be accurate and ruthless in your descriptions. Grading the cover, if there's any defects list them, and really take the Goldmine ratings to heart for record condition. It's better to underrate an album, which makes for a happy winner.
If you were using reference equipment to play your albums, list what you used. If you had a Nitty Gritty or VPI, tell them.
Over 500 albums sold, and I only wound up replacing 3. I didn't guarantee anything, I just took care of business to make the buyer whole if a problem arose.
You can go out to USPS.com, and get free shipping materials, the large boxes make perfect shipping envelopes, when you use them flat, and USPS even provides packing tape for priority shipping.
I charged $5.75 for up two albums, $1.50 each additional, and this worked out to a few cents difference either way when I insured them & used delivery confirmation -- the free packing materials from the the USPS allowing me to get the wax to the customers in a couple days from receipt of payment (PayPal IS worth the tithe, the bidders generally pay you rapidly, if you ship them rapidly, you can have the transaction over and done with within 5 business days.
International shipping. I was able to get the highest bids over 60% of the time going. The really high amounts for bidding came when more than one foreign bidder was involved.
Shipping to the rest of the world is both expensive (on average $11 for the 1st LP, and $6 for each additional), and time consuming -- customs prep takes time.
I charged an additional $5 shipping/packing fee per shipment. I got some serious grief from some of the winners (particularly Italy for some reason), on this, but I posted shipping policies and prices clearly in the item description, and you can't be responsible for marginal abilities to read English by the bidder.
Couple other items that may be of interest -- Japanese pressings in excellent condition command major money, particularly classic rock'n'roll from the 70s - my Santana, Rolling Stones, Beatles for example. These sold for more than their MFSL counterparts (not counting my UQHRs).
Also, in the USA, All Quad recordings, both SQ & QS were in high demand, regardless of type of music. (I was getting higher bids on EMI German SQs than British shaded dogs)
Hope this helps.