HS, the trouble with your question is that it's vague and subjective. Even though I've owned a couple of pair of LS (and KH and Heresy) words like punch will have a certain reference to you, but they might not mean the same to me.*
Lets put it this way; after having several heritage speakers, I don't any more. What was essentially the smallest component of my DIY PA system, and what has become my template for a 3 way home speaker bettered them, and easily. But it was active JBL/Beyma and I'm not aware of something similar out there commercially or easily DIY. I get what people like about the Klipsch H range, but they have too many faults for my taste. The LS also has a poor LF roll off; mostly gone by 100Hz and weak by 125Hz due to the too short horn.
Best suggestion: if looking at a commercial product like the JBLs, go into a store, express your interest, and see if you can buy and return or hire for a modest fee (usually possible mid week) and see if it can be deducted if you decide to keep them. If it's DIY, look around and see who has them, and ask if you can come around to hear. The offer of BBQ fixings and some drinks usually goes a long way toward that. Try to take a pair of the LS to compare, make a day of it and have some fun.
When considering cost, did you factor in potential sales value for the LS? If not add that in as it might allow something even better.
* Years ago, after a long online correspondence with a guy full of lots of vague description I went to hear a pair of small speakers with huge midbass and slam. Turns out the guy was from HK, lived in a small apartment, listened close and quite softly and listened to music that most would describe here as having no bass, eg some operas in Chinese for example. When I played selections of dinosaur rock through them, they were awful (to my taste) and thin and gutless sounding even at low level. Lovely guy and worthwhile experience, because they couple of hours listening and talking to him made clear the differences in language in description that hours online had not. I'm sure if you and I met, the difference would not be so great, but it may also be a set up issue that some time with REW/EQ may help you diagnose/correct and the experience of actually listening to other potential purchases is invaluable.