9th gen i7 + rtx 2070 15" razer blade repad/repaste questions

I recently purchased a 15" razer blade laptop on eBay for 300 USD. Apparently it has a very rare screen flicker when unplugged. I'm very familiar with working on PCs and some macbooks, and looking up repair guides on the 2019 and 2020 models, I don't see anything that looks out of my comfort and skill set. I'm going to start with cleaning it out, repasteing, and repadding everything and was wondering what size thermal pads are correct to use. I saw one reference to 1.5 mm pads and was wondering if that was indeed the correct size?