I put it all into an enclosure last night but wired the power supply jack up wrong (too tired, clearly). Came back to it this morning, found the fault and wired in an LED (I was waiting on some LED clips which arrived this morning).
No finish or anything on the enclosure yet as I just wanted to get it plugged in and play so I could consider the building side "done"
It wasn't the crazy sound I was looking for but as it's the first one that worked I'm going to keep it on the board for a while (it fattens up a couple of other pedals nicely so it will get used).