Old Penton

[MXER10]

Hello,
I have what I think is a late 60's Penton 125 ISDE rolling chassis.
Serial number on the frame is V4135.
Chassis is in fair to good condition but the engine, electrics, carburetion, and exhaust are missing.
Now I have a wrecked 1968 Honda CL125A twin that has less that 3000 orig miles and runs sweet but its not worth soaking $ into to get back in top shape.
I was strongly considering stuffing the CL125A engine into the Penton chassis and building what I thing would be a really unique vintage dual sport bike.
But before I do I'd like to know if I would be destroying something that was actually worth restoring to original condition?
Please let me know.
Best regards, John