Hi all, As above, I'm looking to get a frame for my dad for a poster, however prices seem to vary quite a bit and so thought I'd check here to see if anyone has experience with places etc. The item's size is 22.6in x 17.3in / 44cm x 57.5cm, and so I believe I'll either have to get a custom sized frame, or go bigger and get some kind of backing or whatever that the poster would attach to? Any advice/recommendations would be appreciated!