4450 USD for a lens that should go to a home made camera, you must be kidding!
I take the use of bold characters as a substitute for a smiley... other way there would be no need to evidence the price in bold.
Better make it clear though.
Usually the people with more money than common sense buy Canon lenses in white, and then spray and prey for a single decent digital pic
I know that this forum belongs to a totally different church, but i am always afraid that certain infectious habits could spread so far.
Collecting or being crazy about photographica stuff is one thing, paying silly prices without a rationale, a simple logic of cause and effect, where the solution is commisurated to the entity of the problem... well, that's a totally different thing.
I have no interest (quite the opposite, in fact) in recommending some caution in the purchase of very expensive lenses.
I would be perfectly fine if anybody interested would suddenly run to buy expensive lenses at the silly prices asked by some physical/online/Ebay shops.
Though i feel i have to report a simple truth to those who can't dedicate to their hobby as much time as i do:
good finds are there!
Of course you have to be patient enough, and do your homework before shelling out some hard-earned money.
Just one example, on topic:
some months ago i placed my bid (and lost) on a like-new 480mm Apo Symmar, on Ebay Italy; it sold for less than 500 USD (< €400, IIRC).
It is a truly outstanding lens, with plenty of coverage (at least 11x14" ).
I had the money to fight the auction, but my largest camera is a 24x30cm, and i'm not really into recent super-sharp glasses. With some patience, a little luck, and little money more, i eventually found two nice soft focus lenses with 8x10" coverage
Probably most LF amateurs would go the opposite route.
I guess it's just a matter of priorities.
A small advice for the OP:
find a decommisioned reprocamera with good, large bellows, and build your camera around it.
Not super-easy, but somewhat easier.
Sent from my Android tablet