"Dan" wrote

We are looking at a proposal to sell the Arrow and replace it with a
1998 or newer 182 with a Garmin GPS. If we did this, we would need to
increase the buy-in from $2,000 to $4,000

That is a pretty sizable jump. Any way you can do it for a little less,
like perhaps a little more per hour?

That would be my suggestion. Big amounts of "cash right now" is harder for
some to manage, than more spread out along a longer time.
--
Jim in NC