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You can build your own porangebox for less than 35$.

Orange Pi & accessories

quantity	item	link	total
¹ 10x	Orange Pi Zero H2+ Quad Core Open-source 512MB	https://www.aliexpress.com/item/New-Orange-Pi-Zero-H2-Quad-Core-Open-source-512MB-development-board-beyond-Raspberry-Pi/32761500374.html	$114.28
10x	5V 2.5A Power Charger Adapter Power Supply with Switch ON/OFF	https://www.aliexpress.com/item/5V-2-5A-Power-Charger-Adapter-Power-Supply-For-Raspberry-Pi-3-Model-B-Switch-ON/32773091548.html	$43.29
10x	USB Flash Drive 16GB	https://www.aliexpress.com/item/Super-tiny-USB-Flash-Drive-64GB-32GB-16GB-8GB-4GB-2GB-pen-drive-flash-pendrive-Waterproof/32345359354.html	$63.10
10x	High quality micro SD card 8GB	https://www.aliexpress.com/item/High-quality-micro-sd-card-64gb-Class10-cartao-de-memoria-micro-sd-8GB-16GB-microsd-32GB/32791098708.html	$42.80
10x	FTDI 6pin FT232RL USB to Serial adapter module USB TO TTL RS232 Cable	https://www.aliexpress.com/item/Free-shipping-1pcs-FT232-Brush-USB-To-TTL-Serial-Cable-Line-Electric-Adapter-FTDI-Chipset-Computer/32218925427.html?spm=2114.40010708.4.13.5Gm72S	$31.80
			$295.27

¹ Note: this is the most expansive entry and I had to pay the custom taxes - you may want to check if it's cheaper to split the order into three or four package or if it's not worth it.

Case

quantity	item	link	total
80x	M3 Clearance Circular Spacer D01475 1733405 5mm x 5mm	http://uk.farnell.com/duratool/d01475/pcb-round-spacer-nylon66-natural/dp/1733405	CHF9.52
40x	40x Screws countersunk head pozidriv, M3, Steel, 12 mm CP3M12	http://ch.farnell.com/fr-CH/duratool/cp3m12/vis-csk-pozi-m3x12-bte-100/dp/1377480	CHF1.93
40x	40x Hex Nut, M3	http://uk.farnell.com/duratool/m3-hfa2-s100/full-nut-stainless-steel-a2-m3/dp/1420788	CHF4.05
1x	3mm MDF	http://www.hornbach.ch/shop/HDF-3x500x1200-mm-blanc/7582465/article.html	CHF7.90
		$24.11 US	CHF23.40