Carol,
I have the apex from Ultimate Support.
http://www.ultimatesupport.com/s.nl/it.A/id.227/.f?sc=14&category=44 . It appears to be a little more solid then the one you found on ebay. I would think that the small diameter poles would sway or shake under heavy playing. I have been very pleased with the apex, but I stand when performing. I really don't think either stand will give you comfortable leg room when sitting.
I generally use the WS550 from QuikLok
http://www.tam-srl.it/sottocategoria.php3?id=10 It has every imaginable accessory for holding most anything, mic, sheet music, laptop pc, etc.. It is very stable and offers a lot of leg room. Check with a dealer about avaiability as I had heard rumors about the company and am unsure of it's current disposition
Another option would be the V-Stand from Ultimate Support. The v shape of the bottom of the stand should allow room for the foot pedals. Though I have never used one.
http://www.ultimatesupport.com/s.nl/it.A/id.2606/.f?sc=14&category=43 I have not mentioned any of the X stands, though many are available, as I am simply not a fan of their design. I have had 3 or 4 of them over the years and perfer the other designs above
Richard