i'm actually looking for a sturdy and reltively light hardtail just for this purpose. i picked up a free chariot this year and have added a plywood bottom to it so i can pack tools to jobs on the bicycle. of course i won't be able to load it up too much but it would allow me to commute by bike to the worksite with a tool belt, circular saw and some cordless tools/batteries as well. i wouldn't do this all the time as it wouldn't alwyas be possible, but if it takes an extra 15 min or so by bike, then it would be worthwhile imo.
Great idea…but how does that relate to what an HVAC mechanic carries in his van?