Well, that's your call but I'd say, Ditch it for a new rig
I don't like external freq counters. Internal is nice and clean. If you don't use SSB, that opens it up to all kinds of stuff so no need to limit yourself to SSB radios.
Keeping in mind you're strictly an AM'er in cb freq's, Id probably look at the 99 a little closer. I have an optima in the mobile and a Lincoln II on my shop bench and I change about every 3 months. If you're looking at using it in the mobile, I think you'll find the optima and Lincoln II a little more difficult to operate than most.
Ie: optima - changing channels without a channel selector isn't that big of a deal if you know the frequencies to all 40 channels, but what is a little different is the default 5KHZ step. You basically have to change the channel twice to go from channel 17 to 18. You can press the step button twice every time you turn it on if you want to change it to the "normal" 10khz steps like a cb radio, but that's kind if a pain. Everything is just a little smaller so it takes your eyes off the road. Yes, you get used to it but with a Galaxy 99 etc...you don't have to. I don't care for the lighting on the optima at all for night driving. You have to deal with an 8 pin mic or an adaptor. It's a great radio. That's not in question. These are just practical things I'm pointing out that are important when it comes to a mobile radio.
The same thing goes for the Lincoln II, the cre8900 and other similar radios. Very good sidebanders but not any better on AM.
I'd get the 99 for a mobile AM'er or the 94 with twice the power and maybe forget the amp. A 99 and Texas star. 350 or 500v is a nice little match.
Get whatever you like, just cause you can.