Need advise on increasing power. Quad 5 10M radio

I am currently running a Top Gun Quad 5 10M radio. Its has been opened up to run 10M along with the CB frequencies. The radio itself is currently swinging arouns a max 70w with full modulation using a RK56 mic. The SWR is around 1.1-1.2 using the good coax and dual browning antennas.

Now i will say 90% of the time this radio talks as far as i want to talk. However there are times i want more. The receive is so good on the radio that i can pick up transmissions much further than ever before. So if i am having a conversation i wind up running out of power before i lose their signal.

I have heard of texas star linears, and other forms of amplification but dont know much about them. What i would really like is something in the 250w-350w area with variable power. So as needed i can turn off, up or down the power.

What would be my best option? I dont know my dead key wattage and i kinda hate the RK56 mic ( depends to much on perfect placement on lips to get full modulation unless i wanna yell into it). So i could find out my dead key wattage and would be willing to buy a new mic also.

Hopefully someone has some sugestions. I can answer questions also but since i am on the road do not expect a speedy responce.

Thanks

 

2016 prostar, dual browning antennas, good coax, grounds redone, mirrors doors new power and ground to radio, radio has been peaked, so amplifier is next option. The rk56 is about 10 years old so not sure if that's considered new or not