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How can I resize, relocate and frame Alaska and Hawaii on a US county map, to look more like a traditional map of the fifty states (and DC)?

I've loaded Esri's US county shapefile into R:

library(rgeos)
library(maptools)
# Download from www.baruch.cuny.edu/confluence/display/geoportal/ESRI+USA+Data and unzip
counties.shp <- readShapeSpatial("counties.shp")

I've processed and merged the shapes and data:

library(ggplot2)
counties.shp.f <- fortify(counties.shp, region = "FIPS")
cty_map <- merge(counties.shp.f, cty_pop_msa[,c(2:3,5:6)], by.x="id", by.y="cty_geoid", all.x=TRUE)
cty_map <- cty_map[order(cty_map$order),]

I've plotted a choropleth map of MSA counties:

library(ggmap)
ggplot() +
  geom_polygon(data = cty_map, 
               aes(x = long, y = lat, group = group, fill = metro), 
               color = "black", size = 0.25) + 
  coord_map(xlim=c(-200,-50), ylim=c(25,70)) + theme_nothing(legend = TRUE)

However, Alaska and Hawaii are represented to scale and in their proper locations (I guess), which makes the contiguous US barely legible in A4 format, Hawai invisible, and Alaska too emphasized :

enter image description here

What I need is something more like this, in terms of Alaska's and Hawaii's relative sizes and positions, e.g. sized to fit south-west of Texas and framed:

enter image description here

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