There’s an 1/48 H-34G made by Revell and discontinued. It seems to be a pretty good kit (#4467). Revell also produced the Westland Wessex version (#4468). You see them from time to time on EBay, but that will cost you about $40.00 to get them. I have them both, but I am NOT willing to part with them. Let me know if you want to find out more about these kits, and I can take pictures of the box/content/decals.
Italeri covers the whole series in 1/72 H-34, Wessex HAS3, Wessex HU5, and with the right combination of parts / kits almost any version except the S58T can be built. It’s too bad they don’t scale them up to 1/48 as has been done with some other kits.
I knew they did one in 1/72, I missed the one in 1/48 so I didn’t mention it. Now we just need Italeri to scale up their 3 kits then the 1/48 guys can enjoy the funkyness of the S-58 family. [:D]