Hello mate
I've got an old goose with lesters myself - i'm just wondering why you would want to modify the wheels
- keep 'em coaster all the way
At the end of the day you can still stick a set of caliper brakes on them as well if thats the look you want (a lot of freestyle riders back in the day swore by a full set of calipers plus a coaster to master their tricks) and if you ever decided to change wheels they'd be worth alot more with the coaster on than they would if they'd been modified.
Any piccys of yer bike !?!?!?!?!