Want to add vinyl to my system.

Of course, I'm biased, and without extensive experience, but I played my Rega P8 with various cartridges through a Manley Steelhead phono stage / buffer pre-amplifier, which I ran directly into my amplifiers.  It sounded very good to my ears, but I'm sure many other combinations would be very good aslo. 

I have been looking at Manley a lot lately, very cool design

If you finally decide to go with Rega (TT/cartridge) check their Aura MC.

Plenty of gain and fully adjustable.

Going all the way Rega front end would be a really good choice.

I can only but agree with mijostyn.

I am a record collector from the 70s, have reduced my collection to around 1200 or so now.

I would not bother with vinyl now if strarting from scratch. I had a superb vinyl setup, kuzma XLDC, 4pt, Atlas, Ypsilon phono. Eventually my digital caught up with the vinyl, unless playing mint analogue albums or some audiophile recordings (still marginal gains) digital was as good sometimes better. Most new LPs are from digital recordings, it also seems a lot of the recent  MoFi productions are from DSD files!

I have a Technics SL1200G now which produces terrific results when I am inclined to play a disc.

The digital is from locally stored files, I found this better than streaming roon etc.

Clearly you have money to burn.  Lots of it.

Rega is a great choice as a "plug-n-play" deck, especially if you get a Rega cartrdige.  Their arms are engineered to work with their cartridges.  Anyone else's cartridge may take some serious work to get right on a Rega arm.  The Rega arm has no vertical adjustment, so to raise it up, you have to pull the arm off the table and use shims.  OK for your dealer, but you sure don't want to go there yourself. 

Installing a cartridge on my tables is something of a pain anyway.  Rega cartridges have a unique 3 point mount, which along with the fact that the Rega arms and cartridges are engineered to work together, makes installing a Rega cartridge on a Rega arm the easiest thing there is. 

Just plan on using a Rega cartridge on that Rega table.