I am indeed very sorry for this crude Judeo-Christianic iconnery.
Have you thought of stabilising the beast with a couple of lorry-grade 12 volt batteries on outriggers? You should get a good dynamo charge on the descent without decreasing your top speed noticeably. Enough to stream the results in case your GPS should not complete the descent. With no wifi there is the issue of consistent 3G coverage. Under the circumstances I would recommend PAYG rather than contract ...
Have you thought of stabilising the beast with a couple of lorry-grade 12 volt batteries on outriggers? You should get a good dynamo charge on the descent without decreasing your top speed noticeably. Enough to stream the results in case your GPS should not complete the descent. With no wifi there is the issue of consistent 3G coverage. Under the circumstances I would recommend PAYG rather than contract ...