In this rp there will be some changes one being that instead of going to Gohan and Krillin to summon the dragon, he also healed Goku instead of the healing pod doing it slowly. In the original story ,after being healed by the pod, Goku had a power level of 3,000,000.
That stays the same as for when Dende healed him but tells Krillin to take him to Guru's to unlock his Potential and while Goku and Krillin are doing that Dende and Gohan wish back Piccolo and wished him to Namek though it took a while to do being they were indecisive on which one of them to bring back.
At this point Goku had his Potential unlocked by Guru which used the last of his energy and he dies just as Piccolo is transported to Namek. Now unlocking one's potential can vary from individual to individual but I'm going to give Goku the same multiplier as Gohan. Gohan went from a power level of 1,800 to a power level of 12,000 meaning Goku would go from a power of 3,000,000 to a power of 20,000,000 making him far stronger than the Goku from the original.
Goku makes sure to keep his power low as it could be so Frieza wouldn't detect with his scouter him before he realised that Frieza was fighting Gohan and Vegeta so he and Krillin start rocketing towards them. Goku ,being far stronger than Krillin, is going much faster and arrives with Frieza in his second form as well as Piccolo arriving as well having absorbed Nail. Now being Goku he can sense that he is much stronger than Frieza not knowing he can transform.
Piccolo and Frieza start to fight with Frieza in his second form slowly losing ground to Piccolo though not worried knowing he was still hiding his power from them still having two transformations. After a while Frieza starts to turn into his third form and started to beat Piccolo down in which Goku steps in and sends Frieza to the ground with a kick. Piccolo goes to the ground being healed by Dende as Frieza rushed Goku who again effortlessly knocked him to the ground.
Realizing that he is outmatched Frieza transformed into his final form at 20% power putting his power at 24,000,000 before he and Goku start to fight and it seemed like they were even though slowly Frieza started to get the advantage. After a bit though Goku, unable to handle to power of anything beyond Kaio-Ken x 4 not used to his new power. Even with Kaio-Kenx4 Goku was now match as Frieza was now at 80% power putting his power at 96,000,000.
Just then Krillin started to come into view and as he did Frieza acts like he was going to blast Goku but hits Krillin killing him immediately. Goku watched his friends body fall into the water as he is surrounded in a golden aura. His hair spikes up and turns gold as he screams in anger. In the original Super Saiyan Goku was at a power of 150,000,000 while Frieza was at a power of 120,000,000. In this Super Saiyan Goku's power is 1,000,000,000 which makes him extremely powerful for this time in Dragon Ball Z.
Goku starts to destroy Frieza not even letting him power up to full power though Frieza still lands a shot on the planet which causes the planet to slowly start to blow up. Popo uses the earth Dragon Balls to which back everyone killed by Frieza and Dende used the Namekian Dragon Balls to transport everyone but Frieza and Goku to earth. Not long after Goku shoots a kamehameha at Frieza killing him leaving nothing left.
Goku found one of the Ginyu's ships to leave the planet unknown to the others as he makes his way, though unknowingly, to Yardrat. Meanwhile on earth four months or one Namekian year had passed and they summon Porunga and wished back Krillin, Tien, and then Chiaotzu and then after another four months they wish back Yamcha and make the Namekians a new planet then they try and wish back Goku but it is revealed that he is still alive then they try to wish him to earth though Porunga tells them he wished to stay. Next, having one wish left they transport all the Namekians, except Piccolo and Dende, to the new planet Namek. Dende decides to stay on earth to train under Kami to be the next Guardian Of Earth.