For reference 3 to 5 of the Sherwood YVA3010 valves in the UK are £35.00 each + VAT ex works UK postage at cost.
Also available are panel builder parts such as, 5 and 7 port manifolds, MM. MF. FM stainless check valves,
Bleed valves again all M/M M/F varients and Stainless WIKA Pressure Gauges 400 and 600 Bar safety glass 1/4 NPT
Also Sanvik stainless tubing in imperial sizes 1/4", 3/8", 1/2" OD but in 3 meter lenghs (go figure) as well as a Heinz variety of high pressure compressor filter shells 12" 16" 18" 22" 27" 33" as well as the Bauer 104mm OD filter stacks we know as the P41 and P61 size but the US may use a different part number, normally in all black hard anodise on a 7075 T6 aluminium but other colours are available for various clients. Be aware its a trade only supplier.
Pricing should be comparable to any of the USA suppliers but another consideration is some retail outlets in the US are beginning to supply a cheaper Chinese copy and call it an equivalent of the Sherwood or as a Sherwood Style Valve. Its a trade dress issue if they advertise with a photo of the genuine Sherwood valve and then supply you the cheap Chinese copy but most retail customers are unaware of this practice and most dive shop that supply dont care.