OK, so you're basically boosting a Plexi. The tones you're talking about were done on superstrats, so you'll probably want something bright to complement the fatter tone of your LP.
I'd say you should look at:
Mules
Riff Raffs
VHIIs
Rebel Yells
If you go any hotter than that, I think the tone will be too fat for you. Have a listen to the soundclips on the site and good luck!