Rega P10 v Complete rebuild Garrard 401!


I currently have a Rega P3 that I’m generally happy with, but looking to upgrade and I’m in two minds.  Go old school with Garrard 401 or keep with new tech and get a P10.  Both are well regarded and there are plenty of individual reviews.  However I’ve not been able to find a comparative analysis (not really expecting to) so i thought i would ask here.  It would be paired with a Line Magnetic 508ia tub amp and Harbeth HL5 plus speakers.  
I listen to a wide range of music, from classic jazz, funk, soul and classic rock but admittedly i spend the majority of my vinyl time listening to thinks like Bowie, the Smiths, New Order, A Certain Ratio, Chameleons or similar.  
Any counsel?   
gunners01
I think your decision to go to someone like Chris is a good one. Idlers aren't alway plug and play so unless you're comfortable getting inside one it's good to make sure to buy from a reputable source. Audio Grail 401s blow my mind and I've almost pressed buy more than a few times on Ebay but I'm happy with the footprint of my current Thorens 124. By the way, I'm not sure the 301 is actually better sounding than the 401. I've talked to owners of both who say that the sexiness of the 301 can affect hearing a bit, although both tables are fantastic.
The idlers have more tone when compared to the Raven. This is partially due to the stacked ply wooden plinth I’m using, a different plinth material will likely yield different results.
I measure the wow and flutter of all 3 turntables and they measure pretty much the same with the Raven very slightly lower than the 401 and 301. For those that say idlers rumble and the effects are audible, I really don’t have this issue, this is largely the result of choice in footers being used under the table.
As for speed accuracy, I’d have to give the Raven the edge. Garrards speed accuracy is dependent on the motor pulley, especially changing from one speed to another. Pulleys are sold by a few different manufacturers and I haven’t tried them all.
Thanks. Good info. I'd strongly recommend changing the idler. AudioSilente have one for around $120 and Artisan Fidelity $400. 
Thanks scar972.  Think we are all on lock-down right now.  Plus I’m pretty sure I’m going to go with the 401 and work with Chris.  

I looked at your pictures...wow what a system.  Looks like you have everything set up in your media room.  I’ve been tempted to do the same thing as the family rarely watches movies there anymore, plus I think the acoustics would be much better.  Just a bit cramped with all the other stuff I have in there. 

Curious where did you get your 401? And if you bought one that was not refurbished, where did you have it rebuilt?
best!