A yeoman farmer, a peasant just wealthy enough to own enough land to feed himself, his wife and a couple of kids, will need about 25 acres of farmland. One acre of farmland is about 43,560 square feet or 1742 squares of 5' x 5'.
The purchase of just ONE unit of "farmland" from UCm requires either 600gp or 15 Goods, 15 Labor, and 300gp. The problem is that one unit of farmland only covers an area of up to 100 squares. It takes 17.42 units of farmland to buy one acre, which means that even if that yeoman does enough work around his community to cover the 262 Goods and 262 Labor required, he will still need to come up with 5240 gold pieces to get that ONE acre of farmland. Actually getting the entire 25 acres for that small farm would require 6532.5 Goods, 6532.5 Labor, and a whopping 130650 gold pieces! (Or just pay 261300 gold pieces...) And that assumes that he and his family live in a corner of one of the fields, it does not include the cost of a house or barn, or even a shack. However, for a mere 8,920 more (a measly 6.8% extra) that peasant could live in a Noble's Villa. Building just the farmland segments sequentially would require 8710 days, or almost 24 years.
It takes about 11 bushels of wheat to make the grain for a person to have their daily bread for a year. Wheat returns about 4 bushels of grain per acre, after you pull out next year's seed grain. Assuming 2 adults and several kids that eating like 2 more adults means that the family needs about 11 acres of wheat. Using the price given in the Core Rulebook, wheat costs 240cp per acre, or 26 gold and 4 silver for the family's initial seed grain.
Not a complaint, just an observation...