Framework

That RAM should be fine, and 32 GB is enough for most users. I played safe and got mine from Framework, but it is less expensive elsewhere. You want DDR5-5600 for the Framework; some people have had trouble with RAM with lower specs. The CL specification isn't important for it working or not, but lower is better for speed. You bought the 7640U so you're probably not concerned with absolute maximum speed.

I went with a 2 TB Solidigm P44 Pro in mine. They also have smaller versions. The SK Hynix P41 Platinum is essentially the same drive, but the Solidigm version is usually less expensive. (Solidigm used to be Intel's SSD division until they sold it to SK Hynix. Some Solidigm drives use designs left over from the Intel days but the P44 Pro does not.) It gets high scores for both speed and power efficiency.

Unless you're trying to get as much battery life as possible, any high quality SSD should be fine. A Gen 4 drive will be faster and use more peak power, but since it gets its job done in less time the total power consumption is comparable.