This is probably the best all around solution out there right now if you dont mind the Hana box form factor. No idea where Desire ships from though, so could take awhile to get it.
Box, chip sled, battery sled, cheap tact buttons, and a cheap 510 and some useless wires for ~$21. Nice thing is the sled also secures the charger too supposedly(watch the video).
DIY HANNA MODZ BOX CASE( with DNA Chip Holder)