I like the D boat, but they are pricy, in most cases, and may be a little larger than you seem to be wanting.
The older, smaller Mac/Venture boats are great and are usually very reasonable. I love all the Macs.
I had a 1977 Catalina 22, swing keel ........... loved it!
It has a couple more shrouds, so takes just a bit longer to rig. It sat quite a bit higher on the trailer which had a telescoping extension for launching. But if you're keeping it slipped, launch and recovery is less of an issue.
My guess is that the old Catalina will come a lot more dear ($$$) than an old Mac/Venture.
I've had two Catalinas, a Mac 26X and now a D-boat. The D is my overall favorite for many reasons, some of them are:
Extra light..... 1600lbs dry w/no gear onboard (I tow to my sailing grounds so the lighter the better, particularly when paying $4 plus per gallon)
EASY to handle, EASY to launch and recover, EASY to rig and un-rig, etc.(I single hand a lot)
I can open the pop top alone, with no problem (the one on the C22 took three men and a small boy).
Did I mention.... I love the D-boat?