A few things to note here:
On B engines, in my experience its never a matter of just changes rings and a good B1 overhaual is not a cheap affair and if rings are only slightly weak, I would run it as is until it smokes out completely....
Hardtop: An original CJ/Wrangler hardtop is becoming quite a rare commodity. A Rawalpindi denter recently sold CJ top recently for 40K.
Body Condition: In my view, in such cases everything depends on the condition of the jeep's body and and the quality of any conversions to the body.
Cost of Upgrades: Its has become exorbitantly expensive these days to do any sort of work done on 4x4s... getting a Jeep from 8 (based on your scale, which is interesting can easily cost anywhere between 200-400K based on various things.
Cost of Good CJ-7 Wranger convert: In the Rawalpindi market, as mentioned above a newly finished CJ7 with all Wrangler conversions have been selling for 550 - 700k depending on quality and parts...though current market is very slow
My knowledge in this particular area of your interest fails me miserably but hey...a word of caution....changing rings in a diesel motor generally does'nt get the job done....an overhaul shall follow very shortly!!!
Thank you Suhaib Sb and Mitsu man Info provided would definately help me in deciding on it. Any idea if i swap the engine with some 2L or 2500cc? any idea.