Hi there...
In my experience with homebrew transceivers, some of which are similar to the OHR-100, the approach taken for local oscillator alignment is not only typical- but probably the best in terms of microphonics and drift.
In my work with low drift LOs (VFOs), to have a ceramic trimmer cap in the oscillator determine frequency or set the alignment is to welcome drift with temp changes and normal warmup. This isn't to say that I don't use them- as I really feel that initial drift is not an issue at all unless you're in the habit of having hour-long ragchews with it or for digital use.
Next worst is a TOCO style variable inductor in the LO circuit to set operating frequency. Same problem as with ceramic trimmer caps- opposite drift direction.
If your turns are loose, once it's aligned, glue them in place with glue. 'Model airplane' cement is ideal; it's 'Q dope'. Polystyrene cement. You can make your own out of styrofoam... but I digress

The worst offender in a toroidal inductor based oscillator are long leads on the toroid. Keep 'em short to reduce induced microphonics.
Your power output will come up- as you align it and the current draw will come into line unless there's something wrong in the unit.
Good luck...
Chuck