Sony BKM 10R for about $200 (Patreon)

Sony BKM-10R Remote rack mountable | eBay

Shipping and handling Item location: Los Angeles, California, United States Excludes: APO/FPO, Angola, Cameroon, Cayman Islands, French Polynesia, Libya, Mongolia, Suriname, Guyana, Panama, Mauritius, Brunei Darussalam, Chad, Madagascar, New Caledonia, Bahamas, Bermuda, Iran, Saint Kitts-Nevis, Western Sahara, Bolivia, Laos, Congo, Republic of the, Seychelles, Sudan, Guadeloupe, Venezuela, Somalia, Burma, Cuba, Republic of, Reunion, Yemen, Barbados, Belize, Liberia, Sierra Leone, Central African Republic, Martinique, Dominica, Niger, French Guiana, Saint Pierre and Miquelon, Saudi Arabia, Nicaragua, Tajikistan, Anguilla, Antigua and Barbuda, British Virgin Islands, Cape Verde Islands, Honduras, Saint Vincent and the Grenadines, Turks and Caicos Islands, Botswana, Eritrea, Swaziland, Lesotho