New prop, $200-350 depending on the prop you got and if you could do the work yourself. If the boat is out of the water
easier, in the water
you need snorkeling gear
or to pay for a haulout.
Keelbolts would depend on the type of bolts used. Do the bolts thread into the keel
itself or is there a flange at the top of the keel
and the bolts are thrubolts? If the former then you can probably do the one at a time in the water. If the later you will need to haul-out. Figure $100 for the bolts (these are big bolts and may be a special alloy such as Monel) and $25 for a tube of appropriate sealer.
harder to say, because the system as a whole doesn't work means that you don't know which components are bad:
It could be as simple as a corroded connection to the batteries which would entail cleaning
the terminal or as bad as a lightning
strike in which case the whole system would need replacing or it could be somewhere in between.
As a guess, assuming alternator& regulator
still work, you could do a very basic electrical system
including, batteries, all new wiring
, panel, breakers, steaming and sailing lights and interior
, basic depthsounder and basic knotmeter/log for $1500-2k.
All told I would expect to drop about $3k including haulout and other unforseen issues.
For $4K with that kind of work to do, I would jump at it in a heart beat, especially if it was a bowsprit
version, though I think this boat is too early to be a bowsprit
boat. Several Cascade 29's have been RTW and are still offered for new build, 52yr after first being built.
Where is this boat?