If your Galaxy 88 is not broke I would leave it alone and get a small amplifier. There is more to doing a mod like that then just buying a "kit", solder in some parts, and tada you have a 60 watt radio. If it were that simple places like Bells, DTB, Bob's, and Custom cb would not be backed up with work like they are.
I think if the average guy tried this on his own from cb tricks you would be lucky to see 40 watts. Someone like DTB could do it no problem and it would be done right and perform well I am sure. But for the 40-60 bucks it would cost I don't see where you are money ahead doing that to a working radio.
Also to me going from a 30-35 watt radio to 50-60 is not a "holy crap" improvement. Putting a Texas Star 250/350 behind that Galaxy 88 will give you "holy crap" results.