Sorting products depending on their parameters in Ubercart

Question

Drupal

The question is as follows. There is an online store created with Drupal+Ubercart. It has a number of products and a fairly spreading taxonomy that allows you to identify a particular product by manufacturer, type, purpose. At the same time, goods (electrical lighting equipment) have a number of parameters that take on unique values, such as power, number of LEDs, price, etc. The task is to create product filters based on the values ​​of some of the parameters (for example, prices). Moreover, these parameters cannot be attributed to the attributes of goods, because they are not customized.
Therefore, 2 questions arise:
1) How to organize these parameters at the level of drupal concepts. If you do it in the form of a taxonomy, it will turn out too spread out. Some varieties of capacities (of a specific value) are thousands. While it occurred to me to create a set of unique fields using CCK for each product. Maybe there is some other, more "intelligent" way to do this?
2) Which of the modules would help to make the appropriate customized filters. They are also a search about a number of predefined criteria.