Looks good so far. However you have to take the following into concern: The usbc port is directly connected to the mb, which is good in terms of efficient design but very bad for you if it starts crumbling down in a year. Would it be connected to e.g. to the joystick platine you could simply change that. The mb no chance. You dont get one and if its costly. I dont know where you are located but e.g. in germany we have something called gewährleistung. Which is a kind of a 2 year warranty every seller has to accept. However if the device is older than 6 month you need a proof that the defect was there before you got the goods. Unrelated if you have a similar law or not i would contact support and at least tell them, that you noticed it after you unpacked the deck. They might be more open to a rma if you can reference the ticket if it really breaks in a year. They might also have the best advice :)
About 40 pounds if you replace the hw yourself. So I’d guess 60-90 if someone does it for you.