another company that rents nation wide is
https://www.lensrentals.com/ out of Tennessee.
https://www.lensrentals.com/about-us
They carry Pentax brand and other equipment which might have a Pentax mount.
they would ship to either a street address or a UPS store I believe, give them a call and find out. They do ship nation wide as I understand it.
if you do rent from them, they may offer to sell you the item you rent with credit of the rental on the sales price
again best thing to do is check out their web site and give them a call or since you are not in the US now, send an email
they were very quick to get back to me when I contacted them by email
I would advise paying for their maximum protection plan just in case.