A question---why does the clutch need to be removed?
But if you have decided it definitely has to come out it can be done singlehandedly, I've done it on my '48 P15. The transmission isn't overly heavy, I estimate about 60-70 lbs since I can pick it up off the floor and set it on the work bench. The tranny comes out separate from the bell housing. I use a floor jack with a crude wood cradle within which the tranny is secured with ratchet straps. You definitely want to use alignment pins for removal and installation of the transmission. Order the correct clutch alignment tool, it has unique splines that you won't find in the local auto parts store. I assume the floor boards of your car can be removed which greatly improves access to the transmission.....if not, your job will be much more difficult unless you have access to a lift. The engine will have to be supported when you pull the bell housing because it includes the rear mounts....might as well replace them, too.
Be VERY selective about the release bearing you install, many of the aftermarket bearings are junk. A complete clutch job also includes refacing the flywheel which is another large complication to this job and requires pulling the oil pan and probably the rear crank bearing cap.
Did I mention to be sure that clutch really needs to come out?!
This is a major job if you aren't accustomed to heavy mechanical work but it can be done with sufficient prep and a methodical approach. Hope these thoughts are helpful.