Short Range - Micro-broadcasting FM Radio Equipment & info. for an amateur?

Hi everyone – Sordid about the length but, please read on.
I'm a Venturer - Scout from QLD, Australia. I am interested in Micro-broadcasting at scouting events, camps etc. That run over the seminar of a weekend etc.

So what I would like to do is broadcast music and other audio (recordings and live talk) on an FM frequency (FM because it is more commonly utilized and receiving quality is much better… [I hear]) over a “short distance.”

I have done a little fact-finding on this on the net and talked to a few people. What I would like to know is what equipment I would need. Also good entry level appurtenances at good prices. Things like Transmitter & Antenna, Microphones, sound board/mixer. Kit I do have is: PC, 3.5/6.35/6.5mm leads (male-male & male-female) and playback devices – IPod, CD players.

Of by all means I’m on a budget, so you know “On the cheap” what ever “Cheap” is in this area. (Don’t requisite to here “there’s no cheap way” Give me the least expensive option, please.)

Though, I was wondering if it was possible to run a system with out a soundboard. The soundboard enables the manoeuvrer to select from a number of inputs to broadcast… Does it not? Say with something like a 5 into 1 jack adapter? If they exist. Like a USB hub but for 3.5 or 6.35mm jacks?

I’ve deliver assign to about the Ramsey FM25B Synthesized FM Stereo Transmitter. Would this transmit within an 8km radius? Though, maximum distance required would be around 6km over mostly uneven motive with some dense trees. If not – Possible ways to extend the transmission. Signal amp, taller transmitting antenna?

Again Contrite about the length. Thank you for your help.
I miss-catagorised this I realised just after. Accident. Apologies.

Our other product:

15W FM Transmitter with antenna	Economical Complete FM Radio Station	3KW Rack FM Radio Transmitter
5KW Analog TV Transmitter	Circularly Polarized FM Antenna	Four Slot Sew TV Antenna