Pricing help

[Jimmyc]

Hi all, I have two sets of gold sovereigns that I’m looking to sell and I’m after some expert opinions:

the two sets:

1989 Proof Gold Sovereign 4 Coin Set 500th Anniversary Boxed
 

&

1987 Proof Gold Sovereign 3 Coin Set Boxed
 

- how much I should be looking for each set?

- best place to sell?

- should I keep hold of them with the price of gold at the bottom?

 

TIA