Thanks for the reply, and yes, I understand this forum is mostly for collectors. However, despite being a collector myself, I am not doing it for investment purposes, but rather to decorate my house. None of us will live forever, and I don't think my obscure 40x60 posters hold much value anyway, despite being pretty rare.
The hot lamination method looks fantastic with the right pieces, and is a much more cost effective way of mounting and displaying prints compared to traditional framing. I haven't gotten any quotes recently, but when I framed my 40x60 Mad Max poster back in 2003, it was around $350. So, given the time that has passed and the current state of the world, I bet to mount and properly frame a 40x60 print today would cost an upwards of $800. Maybe more.
To add to this, even when framing, I like my posters to be properly mounted on foam backer board. This gets any creases out and general makes the print look better once framed. So the DIY methods for this size would likely still require me to have them mounted at a frame shop. And plexi is not so cheap these days, with everyone buying it up to use as Covid-19 shields. LOL
The hot lamination method really is awesome looking, and if you are not collecting posters for resale later, it's an awesome, cost effective way of displaying prints. I have five posters done this way and they've held up for over 15 years and still look perfect.
I was hoping that maybe someone on here knew of a place but I guess I need to continue calling every lamination shop in a 300 miles radius. LOL
Thanks!