Couldn't find the ended listing so I have no idea what condition it was in, but if condition was like the one on the pic....
Herbold did race Elevation 5,000s in Ringle, Rock Shox etc trim occasionally. It is a full aluminium bonded frame. The one in the pic is of the 1991 modelyear. You can derive that from for example the 1-1/8 headtube, tapered stays, machined out bb section and the toptube cablerouting. Older ones didn't have that and by 1992 there was a completely new, more svelte design with slooping toptube.
The frame shows interesting design solutions. The Japanese put a lot effort and money in them, as they were dedicated to conquer the US market. What they did, till the Yen skyrocket and producing bicycles in Japan became too expensive. What is also typical for Japanese is proper execution. They offer steady quality and tolances with Miyata are very tight, due to undoubtedly most advanced production facility in the bicycle world. Finishing is durable with many layer paint of exeptional quality.
80s Miyatas are widely considered the finest production bicycles and still nicer than most custom bicycles of that era.
Imho high end Miyata MTB offerings of the early 90s era only have bikes like Panasonic MC Pro/Team and higher level Kuwahara as decent competition were it comes on build quality. Other bikes maybe ride well, look cool or have funny names, but are in another league build quality than these Japanese.
The Elevation 5,000 is an exponent of Miyatas quite early involvement in space age materials like al and carbon (from mid 80s on). It is a move not appreciated by all enthousiasts.
The Elevation 5,000 is identical to below shown Team Miyata Herbold signature limited edition. This final year of 1st gen bonded full aluminum Miyata MTB frame weighs in 18.5" flavour approx 2200gr. Not for weight weenies, but it is a very sturdy, durable frame.
In the background a glimpse of the 2nd gen bonded Miyata MTB, here with ti tubing.
Here an earlier (1990) bonded frame with carbon tubing and gold plating:
In UK not many come up for sale, but I think bargains can be had as nobody know what they stand for.
Finally, to answer your question: If not completely trashed 100GBP is money well spent on such bike/frame.
