[BioC] Graphic tracks UCSC genome browser

[Fenton Christopher Graham]

Have just been asked to produce a relatively complex graphic track from a transcriptome sequencing population study. 
Basically the investigator would like to see the distribution of the transcriptomic data. 
for example, 1st quartile, mean, 3 quartile, max for each transcript.  

Has anyone done anything similar? 
Should I separate the tracks, min-max, 1st-mean-3rd? 
Which file format is best suited for this representation of the data? 
 
Chris