Non ghosting LEDs should not be necessary if you update your game to Rom L-6 (if you ever can find that one) or D-6 from ipdb.org, or use the LED ghosting patcher software and apply that to L-5.
Or if you buy the LED OCD from comet. And add the GI OCD. Might be overkill for fish tales but it makes a tiny difference.
I'm with northerndude on that, I color matched the inserts and they really stand out. I also used pure white LEDs everywhere for GI and backglass, because I don't think the orange glow of incandescent lamps would of been the first choice of lighting if they had options when designing the game.
Making a list of all the LEDs you need is long, matching the sockets, colors, brightness, preferred types (frosted, no dome, etc). And then you hope they have them all in stock, I had to buy different socket types and convert the few missing ones I needed. In the end it turned out great, even though 1 flasher was meant to be green I ordered white (fixed in the list), but you can't tell. I'll share my list, but it's a total mess and I bought a whole bunch of extras to test different things. It can be used as a starting ground to make your own. Don't blame me if any of these sockets are wrong. I don't remember any being wrong but who knows.
No lens LEDs might be better under inserts , because they focus their light in a single direction so they bleed less to adjacent inserts. I used a flasher that I can bend (flex) behind the stretch the truth pannel to hide the bulb and have just the panel flash. I did that in a few places, like the bait for the fish.