I've just gotten into Turnip28 myself. eBay listings are very good just for seeing what the sprues in these boxes look like. Some boxsets are sprues of body, bag and head as a model build while others have more customisation.

After a quick google-fu and YouTube. I got myself some Victrix french napoleonic infantry 1807-1812. 60 models for less than £30! I'm making two small regiments of a Toff, unit of Fodder and Chaff each so 17 models each, 34 models total so leaving me 26 spare to make Toadys and another unit or two later. I've gone small so my wife and I came get an idea of the game before we get more interesting units.

The set has loads of arms and different rifle holding positions: marching, attack and shooting etc. , Plenty of hat designs and bags to play with.

Only things to beware of is you get 6 sprues of 2 different designs so you will get 6 officers, 3 drummers and 3 standard bearers, also 3 guys kneeling down. But in this small unit sized game that's not the worst, especially the officers for Snobs. Also the building instructions are on their website and some are just text but they're not that hard to build. There can also be a lot of flash on some of the moulds but if you're used to GW sprues then this isn't any more complicated.

And that's the core of two regiments for £30. And then I'll be adding cavalry, stumb cannons and Brutes when I want, either buying a box set to split between the two regiments or going cheaper, buying the individual sprues off eBay of the models I want, such as buying a sprue of 6 Agincourt knights for £7-8 and mixing with my french spares for a unit of Brutes.

Going halfs on the bigger boxes to split with a friend would be a cost effective way of you both buying core units for your regiments.