I’ve been out of the game for awhile, so unsure if these prices properly reflect market, but here’s my best guesses. All prices in USD
WTB 1st Edition Base Set Holos, PSA 9:
Chansey PSA 9 - $1500
Clefairy PSA 9 - $1000
Gyarados PSA 9 - $1600
Magneton PSA 9 - $800
Mewtwo PSA 9 - $2100
Would prefer to do a bulk buy, but willing to buy individually as well.
Thanks
I think my prices were likely too low, as I bought a Clefairy last night for about $1400.
If allowed, if folks have these cards and are willing to sell I’d like for you to reach out with the price you’d like.
To add to his I want to put in the following (Looking to upgrade):
1st Edition Venusaur PSA 9 - $3100
1st Edition Blastoise PSA 9 - $4800
damn these have gone up a lot i had 2 or 3 venusaur i sold lower than that 
Maybe I’m overpaying!
Just sold a thick stamp Magneton for a little over $1400, so things are cooking. Personally I can’t see selling any PSA 9 1st base holo under a grand
I lost out on a Magneton last night for just under $1100
Okay, crossed off Magneton and Clefairy. Only a few more needed
Knocked off Venusaur. Means I only need 4 more. I know you want to help