Narrow 27" rims are hard to come by these days, and were probably nearly as difficult in the 80's. I did manage to snag a pair of NOS Araya 27x1 rims a while back that I built up with some Shimano HF hubs. If it wasn't for the crazy price to ship full wheels I'd consider offering to sell them, but I'm out of wheel boxes and they'd probably cost at least $30 just in shipping to get them to you on top of what I'd have to ask for them due to my own investment in them.