What about something like this....
...just finished this one for a friend of mine.

It has a bypass switch and parallel/serial switch as well.
 

It was a custom order... if there would be a market for it, I could easily order more... but it is always a bit tricky to order these stuff in quantity isn't it.

What are you referring to?....Transformers?

I don't doubt that's the way it works for you, but for anyone who might think that's true for everyone, and that it's a compulsory extra cost:
To me the BM50 sounds delightful without any buffer added. I prefer it over the Matchless and Victoria amps I 've tried. In fact, it's my favourite
Then again, I don't use it for heavy OD, which may be where the C-Lator adds its value

I should of said "this amp" not "these amps", mine is a HRM not a BM
And from what I can gather from clips other people have posted, these 2 amps are different sounding.

The only other Ceriatone "D Clone" that I have heard in person is a OTS50 another guitarist in town owns and that sounds different again. He doesn't know if it is a S&M version or modded or not, he bought it off EBay.

I don't run a lot of gain at all, more of a boosted clean, but without the C-Lator it sounds raw and harsh in both channels, the C-Lator takes the edge of it.

For Higher Gain stuff I do another band I use the Stray Cat

The C-lator or Dumbleator variant is far superior in terms of high fidelity than that of the K-lator. the K-lator does not have as much headroom. D-lators add more than just an interface to your effects, it's a tone shaping tool in itself. Increases overall sensitivity to pick attach, more compression, more balanced OD and clean tones, as well as an Overall Master Volume. I highly suggest one for any D-style voicing whether it be non-HRM, HRM, high plate, low plate, BM, HRM whatever... They're 100% necessary. 

I think speakers are important on the BM too. I was running weber 1265 alnicos (alnico version of the G12-65) until tonight. The alnico weber version of the speaker is not dark as others, more on the warm side, and nicely bright, but the low end response of the BM was a little much for them, at least to my ears. I could never really find a tone stack setting I was really happy with, that's part of the reason I bypassed the HRM tonestack. I even stopped using the c-lator for a bit out of frustration. Tonight I stuck my 20 year old eminence G1s in there, tuned the HRM and PI trimmer back to factory specs put the c-lator back on and wow! That's all I can say. I ran it without the c-lator as well to compare and even with the better matching speakers it just wasn't as good without it. Seems to make it smoother and more punchy at the same time, depending how you set it. The Webers are great speakers, just not a great match for the BM