Vintage R/C Excavator

[baker3]

Well, its been a while since I posted here but I recently scored a couple of new projects. First is the Vintage New Bright Excavator. I got a killer deal on it and it works perfectly. Already upgraded it to run of a battery pack instead of 4 C batteries. Should I tear into this and upgrade it fully or should I leave it be? Opinions are welcome. 2nd is the "disco" R/C tracked loader. This thing is annoying. Cool things is it has engine sounds but it plays an annoying song when going forward. Plus the red and blue led light on the boom. Let me know what you guys think.