A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
Typically, the weather there in October should be more settled than it is in April. Less chances of severe weather. However, daytime temps in Big Bend can reach 90F + easily, even in October.
I noticed a lot of talk in this thread about vibration. If you upgrade your laptop hard drive to a Solid State Drive (SSD), no more worries about vibration. Another advantage of SSD's, is they are fast. Windows boots in less than 15 secs on my Alienware laptop with a Samsung 256GB SSD.