Single bass to double bass electronic drum kit conversion?

I'm planning on buying an electronic drum kit, the model being the Alesis dm lite 5 piece kit. However, I noticed its a single bass kit, but I want a double bass. I've done some research and found that the pedal connects with a aux cable, (I believe that's what it is) Could I buy a separate bass pedal and a cord splitter and make it work like that?

Update : needs to be long about 6 minutes i think. About killing or wanting to kill i already did one called cold blooded murderer which i liked but need another one. other ideas would be good too. thanks!

How much would i get for an acoustic guitar with a missing string?

Iv had this guitar for about two years and i bought it for about 64$ and its in great condition but the only problem is that the high e string broke when i was playing it and its been in the box every since. I never really played it much so it has no scratches, dents, etc.. only a missing string. How much would i get if i sold it at my local pawnshop?

14 y/o girl Aladdin jr. audition, needing a tenor song!?

So, I'm 14 years old and a female, going for genie, and I'm an alto, but my range is down to low Bb, and I usually sing Bari/Tenor in choir. Genie is tenor and I need a good, funny, and age appropriate song in that range that I can cut down to one minute, and hopefully ace. I would appreciate all suggestions, but it must be a showtune.
Thanks so much!