51 Chris,WELCOME to the "Bolt"!!Looks like Jeff's set-up is on page 2 in his P.B. link. SMART!! He used a motorcycle/transmission jack, to raise the dolly to the cab! You could build one out of lumber,as well,depending on available materials. Several choices of "locking" wheels/casters are available at harbor Freight,and cost is relatively cheap. You could build it to any height you'd like,but I'd think,the closer to the floor,the easier it would be to work on,(reach). If you remove the doors,make sure you re-enforce the cab,(X-brace)the door openings,(front -to back,side-to-side),to keep the cab from buckling. several different video's on "Youtube" on this subject as well. Be SAFE,and have FUN!!