FJJP, Good idea, but as a floater pilot I operate from St. Mawgan to Inverness, as required - but I will mention it to the base pilots. Only the Scottish HEMS have weather radar, because there is a regular need to fly IFR (Scottish HEMS is 24/7), unlike the rest of the UK which is mainly, but not exclusively day only.
Too old to fly in a fast jet now, brain would not keep up, which is why, these days I stop and land rather than land and try and stop!
Green Flash, Gliders and hot air balloons do sometimes carry a portable transponder, but it is the exception rather than the rule, even if the glider is flying at FL 100+
Before anybody asks - yes I regularly fly rotary wing at FL 100.