To accurately and completely answer your question more information is needed.
that cost less than $4k and installed on monohulls are not safe to use for a dingy and motor
while sailing because you never know when the sailing conditions will change and because it is difficult, if not impossible, to completely secure the dinghy
from swinging. A dingy swinging from davits
will damage itself, and/or something else.
Assuming you have monohull
davits that cost less than $4k:
*** "Not offshore" - tow the dinghy
- place the motor on its rail mount and the dinghy on the deck
*** At anchor
the dingy with motor for security
reasons (most places).
Hope this helps you