Dear lazyweb,
I have seen the fuji and nikkor 300 recommended all over the place but they seem a bit expensive. Is there a less expensive alternative I should be considering?

Some parameters:

I use a 4x5 field camera that extends to 450mm
I do a fair bit of hiking around with it.
I am new to large format.
I could scrounge up a copal 1 if there is some process lens/cells that would work.
I am pretty cheap, for example I don't mind messed up filter rings if the glass is clean.

Thanks for the help.
Seth