As the Title says …
Which are Reccommends ?
Being fairly accurate without spending too Much
not Too Cheaply.
Not looking to do Any electronics
Mods, Can Do outside/surface Mods.
Since you don’t want to spend much (so no custom builds or higher end “toy” replicas) nor do you want to do any electronics (so no scratch builds or 3D prints) you only have two options.
Or
https://www.spirithalloween.com/product/led-p-k-e-meter-ghostbusters/