L-27 sounds right, It looks in good shape apart from something picking at its tail but that will heal.Looks to be 5-8in long. How much are they asking?
IMO it looks like what's called gold thunder not what's been shown to be teles pires but for all we know thunder, gold thunder and teles pires could all be the same just patterns and colour vary between fish
To put you at ease this look is what's been coming in as teles pires for a bit over 6 months now
The fish is a bit pricey but to be honest I'd buy it lol