For the short term you intend to keep this boat, an $8000 or $9000 investment will be very hard to recover. The value on your boat averages around $12000.00. Investing $9000 in a $12000.00 boat that you intend to sell in 3 years does not make alot of sense to me. That being said, the piece of mind could be far more valuable to you.
Were it my boat, I would have a mechanic
specifically familiar with A4's do a very thorough inspection
and teardown. In the process, the head
can be resurfaced, and new top end gaskets installed, assuming the teardown does not show any major issues. These are things that will be a benefit, and well worth the cost if you keep the engine
I will admit that I tend to lean toward the "If it ain't broke, don't fix it" school
, and I have had flat heads that ran, long past their mechanical soundness, but I have also done roadside repairs
on flathead Harleys that would send chills down your spine. I had a 51 dodge flat head
with over a million miles on it, and it still ran around town just fine. After the 4th head gasket
in 2 months, I found 3 wrist pins had slipped and gouged the cylinders. Only used about 2 qts of oil
As for point vs electronic ignition, I would stay with points. I have had very bad luck with electronic. That is just an old Harley mechanic's opinion, but the first thing I would always do when I bought another engine
to put in a bike is get rid of the electronic ignition. An A4 can be hand cranked in an emergency
, but not with electronic ignition.
Just opinions, and they may not fit you situation, but the recoverable cost should be a real consideration.