I have a spare HS-11 enclosure from Alan (eboards Peru / eBoosted). Expecting others are impatient and excitable as myself, I bought two together to save on Postage, and support the legend.
These take about 4-6 weeks to manufacture in the current climate, so anyone itching to get riding this is your lucky day. This enclosure is designed for the Trampa HS-11, but fits many other Mountainboards too.
It will hold a 12S4P 18650 Pack with plenty of space for VESCs.
This one contains a Dual Aluminum Heatsink and comes with rubber Gasket fitted, so brimming with the extras you may be looking for.
I paid $235 USD (£165) plus shipping. So hoping someone might come close to matching that.
Price £150 UK. + Delivery (Trampa Deck not included)
I would be happy to build the 12S4P Battery Pack for this if anyone was interested in that, I could offer this for an extra £400. Battery Pack Build is for UK buyers only.