I will be installing a Formotion Clock and Thermometer, they were fairly reasonable.

http://www.formotionproducts.com/C&TMAIN.htm
http://www.formotionproducts.com/SB%20Accessories.htm

You'd want the Snap Back line, with the black mount. I think I spent $35 each on the clock and thermometer and $15 for the mounts. You then just either glue or double-sided tape them where you want in the Morgan. I would like to re-do all the gauges in general, but that's a project for down the road.