I like both ideas. I feel most people would appreciate the balance of simplicity, value and ease of both thee with #2 being the best. I know I would. Make the pit probe with a alligator clip on the end so it can be clipped to a grate. or at least a clip than can slide over the probe.
UDS', mUDS, COS. Weber gasser & kettle. Thermapen,Digiq2, Golden-Tiger