Choda Boy-
Answers to your questions.
Without batteries about 11.4 oz.
Battery requirements: 8 AA, no rechargeable pack available
Receiver 407S & 408S will work with this Tx. The 407S has the regular antenna found on crystal receivers and the 408S has the coaxial cable antenna for better noise cancelation and range.
We use our own DSS 2.4GHz system.