IMO:
Amount Item Type % or IBU
2oz Magnum [10.50 %] (90 min) Hops 31.5 IBU
1oz Fuggles [4.00 %] (60 min) Hops 6.2 IBU
1oz Fuggles [4.00 %] (30 min) Hops 4.8 IBU
1oz Goldings, East Kent [4.50 %] (30 min) Hops 5.4 IBU
1oz Goldings, East Kent [4.50 %] (15 min) Hops 3.5 IBU
total 51.3 IBU (That's a lot but will be very smooth with the magnum, but make sure you do the Magnum full boil)
Also 350 g DME in 3.5 quart for each starter (you need some shakin' room)
Make one starter with the whole vial, then make the other, while it's cooling, pour half the first starter into the second jug, then top off both to 3.5 quarts!
Dave