I'll take you up on your offer! It'll probably be my rogue, since she already has the BtC True Heart of Wood in the bank. After running her through some stuff, she's surprising me at how strong she is with the new enhancements! I could then stuff a bunch of inventory onto her to make use of the TR cache for maximum storage to better organize my current inventory mess.
My bard is set up to be the best party buffer possible, and would likely be welcome in groups. Trying out my paladin, she's also surprising me with the new enhancements - the only time I might really miss the deity feat heal is in reaper mode, but I could avoid those. With either of these, I'll let the party know that my build isn't the optimal near-perfection that I strive for.
Thanks for all of the advice! It sounds as though saving these characters' BtC Lesser Hearts of Wood in their banks would be best for me, toughing out the first-life sprint to level 20 for a TR.
I did already use the BtC +0 Lesser Heart on my 28-point dwarf barbarian, simply because he has the most favor, needs to unlock more freebies on the server, and will be spending quite a bit of time in epic play in his first life.