Just gauging interest at this stage but, as a for-instance, I could offer an 81 cm x 46.5cm (about 30" x 18") print of the first image below on high-quality, 260gsm gloss paper for £24.50 including delivery.
I have dozens of others I can offer. Small selection shown below.
Prices will vary according to dimensions and format. Larger or smaller is entirely possible.
That last image is the view down an actual No. 4 barrel.