This isn't definitive but it gives you an idea of what you'll need and a ROM of what you'll need to pay.
PCPartPicker Part List
Type
Item
Price
CPU
AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor
£130.97 @ CCL Computers
Motherboard
Asus - PRIME B350-PLUS ATX AM4 Motherboard
£69.99 @ CCL Computers
Memory
Crucial - Ballistix Elite 16 GB (2 x 8 GB) DDR4-2666 Memory
£136.00 @ Amazon UK
Storage
Samsung - 860 Evo 500 GB 2.5" Solid State Drive
£72.98 @ Aria PC
Storage
Seagate - FireCuda 2 TB 3.5" 7200RPM Hybrid Internal Hard Drive
£82.99 @ Box Limited
Video Card
Zotac - GeForce GTX 1060 3GB 3 GB Mini Video Card
£157.79 @ Amazon UK
Case
Lian-Li - PC-V650A ATX Mini Tower Case
Power Supply
EVGA - SuperNOVA G3 550 W 80+ Gold Certified Fully Modular ATX Power Supply
£83.40 @ Alza
Optical Drive
Asus - DRW-24D5MT DVD/CD Writer
£13.00 @ AWD-IT
Prices include shipping, taxes, rebates, and discounts
Total
£747.12
Generated by PCPartPicker 2019-05-20 16:02 BST+0100
PCPartPicker Part List
Type
Item
Price
CPU
AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor
£130.97 @ CCL Computers
Motherboard
Asus - PRIME B350-PLUS ATX AM4 Motherboard
£69.99 @ CCL Computers
Memory
Crucial - Ballistix Elite 16 GB (2 x 8 GB) DDR4-2666 Memory
£136.00 @ Amazon UK
Storage
Samsung - 860 Evo 500 GB 2.5" Solid State Drive
£72.98 @ Aria PC
Storage
Seagate - FireCuda 2 TB 3.5" 7200RPM Hybrid Internal Hard Drive
£82.99 @ Box Limited
Video Card
Zotac - GeForce GTX 1060 3GB 3 GB Mini Video Card
£157.79 @ Amazon UK
Case
Lian-Li - PC-V650A ATX Mini Tower Case
Power Supply
EVGA - SuperNOVA G3 550 W 80+ Gold Certified Fully Modular ATX Power Supply
£83.40 @ Alza
Optical Drive
Asus - DRW-24D5MT DVD/CD Writer
£13.00 @ AWD-IT
Prices include shipping, taxes, rebates, and discounts
Total
£747.12
Generated by PCPartPicker 2019-05-20 16:02 BST+0100