How about:
http://www.treknology.org/starships8.htm (charelston, aka wanderer class) Lord Bile has one, I thought it was released for BC. Either an overhaul or if permission can't be obtained, a new one:
Another small list: (see bcfiles)
Midwinter
Deemon class
Zandura class
Interceptor class
Audacious (never lived up to it's potention, a same too)
Chimera 1.0
Tetryon (nebula refit by moonraker)
Tagor_Morlatta (tmp version of a tos styled bird cruiser) <--adonis, these fit your tmp skillz
Temar_Hathos (tmp version of a tos styled scout)<--adonis
Melbourne (nebula class)
And if there was any doubt as to what has the downloads to back it up, my favorit TMP Rommie:
http://bridgecommander.filefront.com/file/Romulan_Firehawk;12384the FH kicks arse. There are several unreleased bashes including a 6 nacelle warbird double hull (tng D class style) that could be modified so the extra 4 "nacelles" could be heavy weapons pods giving us an amby era rom. There's cruiser versions too.