Tuff question to answer but I will give it a go!
1. What are your aims (scuse pun!) 1000yd target or vermin?
2. How many rounds a year?
3. Do you belong to club and if you do anyone giving up reloading?
4. On that note dont discount good second hand items.
5. You will need - a press - dies set and shellholder - a beam scale - a caliper - a powder thrower - primers - powder - bullets. Then case trimming and other odd widgets.
6.If you buy new look at RCBS/Lyman/Hornady and dont discount Lee (apart from the awful safety scale) Lee make some good things. And they all make a starter pack - just add dies.
7. New starter pack from about £400 and up. Dies from £45 and up. Primers - if you can find them from £120 a k. Bullets from £300 a k (Lapua) Powder from £300 for 3.6kg (Viht)
8. Totting that up to make 1000 rounds you will be looking at an outlay minimum £1000.