Yes
There will be a block of rooms available at The Doubletree Hotel in Downtown El Paso (it's very nice), where the wedding will be held. There are other hotels available within walking distance, including chic boutique and historic haunted hotels. I'm sure there are lots of AirBNBs available, if that's your jam, or maybe you know someone else in town.
Odds are you already live here, so just stay, if you don't, Southwest offers cheap direct flights from Austin, Houston, Dallas, and San Antonio, amongst other major cities.
Just wear a f**king mask.
Due to the current climate of hackers and cyber-criminals it is imperative to the integrity of the RSVP process to have a paper trail, so, no. Please mail back your RSVP card that is attached to the invitation, it's already stamped, or if you prefer hand it in person before the deadline.