I got the Radio and Antenna for free from a buddy. It's a Yaesu ft-1802 transceiver. It's a couple years old and today's equivilent would be the Yaesu ft-1900, which is around $130. The antenna probably around $30-50.

The Wiring was $0.38/foot. I got 10 feet for both hot and ground.
Butt connectors: $3 for a pack of 20 I think.
Ring connectors: $5 for a pack of 10.
Fuse holders: $2 each
Electrical tape: already had.
Fuses (15amp each, btw): already had.
Zip ties: $3

So even if you had to buy the tape and fuses, you could probably get it done for less than $25 not including the radio and antenna. Just DO NOT, DO NOT buy wire at autozone or advance. They charge outrages prices per foot. Lowes had the gas/oil/heat resistant wire for less than $0.40 per foot. Autozone wanted something like $7 for a couple foot of 12AWG wire. Just also be certain that your connectors are good for the wire gauge you're using. You don't want to use 12 or 10 AWG connectors with 16AWG wire, it'll fall out, you'll have a poor connection. Even if you can jamb a 12AWG wire into a connector for 16/14AWG, you're likely overloading the current the connector can handle. It'll start to heat up, and you'll lose a lot of power to heat. You'll notice the longer you transmit, the worse your signal gets, because of the connector heating up and gaining more resistance.