it sounds like you...don't have a lot of money, and then you do have a lot of money. Do you want High horsepower, or a good daily driver with more power (90-100 HP).
what I suggested will give you a lot more power than a factory 1600, it will be reliable, cheap, and you'll be happy with then end result.
if you wnt to go 2110, then you are looking at a bare case machined for about $500-$600, then a crank $400, P&C $400, carbs $600, Heads $600-700, then labour, cam, header, exhaust, tin, alternator, oiling, etc... you bill would be in the $4000+ dollar range if you want to build it right the first time like you said.
these are just rough estimates. I think that the crank will be a lot more, and the heads depending on what you want, will be more as well.
like I said, if you are looking for a daily driver and don't want to spend too much but get more power, a 1776 with the specs above will be prefect.
Stephan