Laying out a table in SwiftUI

I want to present a table using SwiftUI. I've gotten most of the way using LazyVGrid.

Problem 1 is the last row's frame paints below the LazyVGrid frame when the last cell is taller than the others.

Problem 2 is the last column shows multiline text. All cells on that row should be aligned using VerticalAlignment.firstTextbaseline. What happens is all of the cells end up vertically aligned.

private var columns: [GridItem] = [
    GridItem(.fixed(25)),
    GridItem(.fixed(25)),
    GridItem(.fixed(30), alignment: .trailing),
    GridItem(.flexible())
]

var body: some View {
    LazyVGrid(columns: columns, alignment: .leading) {
        ForEach(rows) { row in
            Text(row.a)
            Text("#\(row.b)")
            Text("(\(row.c))")
            Text(row.d)
                .multilineTextAlignment(.leading)
                .lineLimit(nil)
        }
    }
}

I explored using custom alignment guides istead of LazyVGrid, but I don't know how to apply more than one guide to achieve the effect of tab stops for each column.