Thanks, we needed a little encouragement for the Lithium camp. Even though the current state-of-art isn't drop in, the LTO option is very promising and not really very complicated. The heavy lifting electrically was done by insightbuyer and Peter. What remains is a bit of mechanical fabrication which gets increasingly refined each week or month.I vote yes.
The cost of a really fine functioning prototype capability built around the LTO cell can be had for less than the cost of a 5 year warranty NiMH. In a sense, Lithium has arrived for those with just a bit of mechanical fabrication skills.