I was fiddling with my Classics voyager Prime last night and found an interesting TF. It looks like Prime could be reconfigured/added onto to create a classics Soundwave mold. If my eyeballing is correct maybe it could even have a tape-deck slot for Cassetticons? It looks feasible, anyone else think it could work?
I'm all about Music Label Soundwave, BUT, I don't use that mold for Convoy, and I could use a base for a decent Broadcast/Blaster. I second the call for pics of your proposed alt-mode.
I'm trying to look at my UM (it's closer to the edge of the shelf than OP) to think of how you could be seeing this. And I admit, that maybe if you turn the waist back around you could use his butt of Soundwave's crotch and then switch the lower legs. The arms are simple enough, they already look like Soundwave's, but the torso... OH! I think I see it now. That's going to be a lot to fill in, though, to make a chest. I think you could even use the bumper for the cassette tray too. This is a pretty awesome, and surprising, idea. I'd love to see this followed through.
i do see where your going with this. ill try to get a good tape deck mode with him. and i remember that you can take off the chest piece/windsheild with a good screwdriver.