Re: 1974 Starcraft Holiday 16' Restore
Last year, we bought an 18' 1968 Holiday, with a '69 Johnson 115hp (the boat we have is rated up to 120 hp). We bought it for the boat, not for the motor. The boat was in great shape, and didn't require any internal work. The transom is solid. At some point, I'm going to do a restore, but not just yet. The old motor was unreliable, and heavy on gas, and we wanted to have a turn key boat (i.e. turn the key, and we have absolutely no worries that it would start). The old motor weighed 245 lbs.
We looked for about eight monghts, until we found a one year old local Yamaha F90L (20" shaft - we have a 20" transom), with 28 hours on it, for a great price. The motor weighs 399 lbs. The only issue was whether the transom was strong enough. It is. The transom is getting to the point where it will need replacing in the next few years, but we figure we'll get a good couple of seasons out of it.
So - locally, a new Yamaha F90, installed, would cost 12k, plus installation. We paid $6800, plus $3200 for installation (which included a new harness, new Yamaha digital tach, new steering wheel, new controls, and new steering sytem). A new motor (motor alone) locally would have been $10-$12k. We now have $11k into the boat and motor, but while the boat is old, it is solid, and we have a motor that still has two years of warranty on it.
So - my reccomendation is start looking for a motor now - you are probably looking for a 90hp 20" transom motor. A 75hp might be enough for you, but I would think it would be underpowered. I would suggest a new or nearly new four stroke. I found there were several buying opportunities over the 8 months that we looked, for major saving over the cost of a new motor. There were several deals on ebay over the year for 'new non current' motors,' as well as nearly new low hours motors, as well as a few deals that came up locally.
If you rebuild then look - you'll be in a rush to buy when the restore is done - if you look as you rebuild, you can let the OK deals pass you buy, until a great deal comes along.
We found that the 90hp was fine for the 18' Holiday. We run it with 2 adults and 5 kids. It runs cruising at 22-25mph, and WOT at 34mph. Fine for us.