Hi Suzy,
I own a "boxfull" of premium eyepieces. In the 12mm to 15mm focal length range I own the following:- 12mm UO HD ortho, 12mm Nagler T4, 13mm ETHOS, 14mm Pentax XW. I have also used a 12mm Radian, 12mm Nagler T2, 13mm Nagler T1, 13mm Nagler T6, 13mm Vixen LVW, 13mm Baader Hyperion, 13mm Orion Stratus, 14mm Meade UWA S4000, 14mm Meade UWA Series 5000,
14mm Denkmeier, 14mm TV Radian and a 15mm TV Panoptic.
Of all of those that I own and have used I would buy the
14mm Denkmeier, each and every time. It excels in every criterion and measure of optical performance and has no negatives. It is optically superb and has excellent eye relief and comfort. I don't need to sell my eyepieces and start again but if I did I would buy the 14mm Denk without hesitation. It has a 65 deg AFOV which suits me perfectly, as does the 70 degrees of the pentax Xw's. $300 will go very close to getting you a new one.
http://www.denkmeier.com/pdf/Eyepieces.pdf
http://www.cloudynights.com/item.php?item_id=2087
They are always advertised as a pair for binoviewing, but they can be purchased individually from just about all dealers.
Cheers,
John B